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Brain Scan Volunteers OG16 Q73

This topic has 2 expert replies and 2 member replies
Neilsheth2 Senior | Next Rank: 100 Posts
Joined
03 Jun 2012
Posted:
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Thanked:
1 times

Brain Scan Volunteers OG16 Q73

Post Fri Sep 18, 2015 1:50 am
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    73. Researchers studying the brain scans of volunteers who pondered ethical dilemmas have found that the basis for making tough moral judgments is emotion, not logic or analytical reasoning.



    (A) the brain scans of volunteers who pondered ethical dilemmas have found that the basis for making tough moral judgments is


    (B) the brain scans of volunteers who pondered ethical dilemmas and found the basis to make tough moral decisions to be


    (C) the brain scans of volunteers pondering ethical dilemmas and found that the basis for making tough moral decisions is


    (D) volunteers’ brain scans while pondering ethical dilemmas have found the basis to make tough moral judgments to be


    (E) volunteers’ brain scans while they pondered ethical dilemmas have found that the basis for


    I get the OA A but I would like to get a brief note on the meaning part especially understanding the split between the brain scans of volunteers vs volunteers’ brain scans. I have seen many times GMAT hates the usage of Possessives especially for 'humans'. Am I missing any kind of rule here?

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    Post Sun Sep 20, 2015 2:08 am
    Neilsheth2 wrote:
    73. Researchers studying the brain scans of volunteers who pondered ethical dilemmas have found that the basis for making tough moral judgments is emotion, not logic or analytical reasoning.



    (A) the brain scans of volunteers who pondered ethical dilemmas have found that the basis for making tough moral judgments is


    (B) the brain scans of volunteers who pondered ethical dilemmas and found the basis to make tough moral decisions to be


    (C) the brain scans of volunteers pondering ethical dilemmas and found that the basis for making tough moral decisions is


    (D) volunteers’ brain scans while pondering ethical dilemmas have found the basis to make tough moral judgments to be


    (E) volunteers’ brain scans while they pondered ethical dilemmas have found that the basis for

    In B, researchers (subject) lacks a verb.
    Eliminate B.

    A conjunction such as and must serve to connect PARALLEL FORMS.
    C: Researchers studying...volunteers pondering...and found
    Here, and cannot serve to connect studying and pondering (modifiers) to found (verb).
    Eliminate C.

    D: Researchers studying...while pondering ethical dilemmas
    Here, pondering seems to refer to researchers, implying that RESEARCHERS were PONDERING ethical dilemmas.
    The intended meaning is that VOLUNTEERS were pondering ethical dilemmas.
    Eliminate D.

    E: Researchers studying...while they pondered ethical dilemmas
    Here, they seems to refer to researchers, implying that RESEARCHERS PONDERED ethical dilemmas.
    The intended meaning is that VOLUNTEERS pondered ethical dilemmas.
    Eliminate E.

    The correct answer is A.

    Note:
    Answer choices with plural possessives such as volunteers' tend to be incorrect.
    Here, the brain scans of volunteers is preferable to volunteers' brain scans.

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    Last edited by GMATGuruNY on Mon Sep 21, 2015 8:05 am; edited 1 time in total

    Thanked by: Neilsheth2, anant03, Needgmat
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    GMAT maniaic Newbie | Next Rank: 10 Posts
    Joined
    20 Sep 2015
    Posted:
    3 messages
    Post Mon Sep 21, 2015 7:47 am
    Who refers to researchers or Volunteers ?

    anant03 Senior | Next Rank: 100 Posts Default Avatar
    Joined
    01 Sep 2015
    Posted:
    70 messages
    Post Tue Sep 22, 2015 3:42 am
    Quote:
    Note:
    Answer choices with plural possessives such as volunteers' tend to be incorrect.
    Here, the brain scans of volunteers is preferable to volunteers' brain scans.
    Hi GMATGuru ,

    Just a quick question here.

    Puller possessive is always wrong in gmat? If not then can you please advise when should we use this?

    Please advise sir.

    Thanks

    Post Tue Sep 22, 2015 4:31 am
    anant03 wrote:
    Quote:
    Note:
    Answer choices with plural possessives such as volunteers' tend to be incorrect.
    Here, the brain scans of volunteers is preferable to volunteers' brain scans.
    Hi GMATGuru ,

    Just a quick question here.

    Puller possessive is always wrong in gmat? If not then can you please advise when should we use this?

    Please advise sir.

    Thanks
    Plural possessives TEND to be in incorrect answer choices, but they are not ALWAYS wrong.

    Examples of plural possessives contained in OAs from GMAC:
    the local artisans’ creative energy.
    the mollusks' growth

    Examples of plural possessives contained in incorrect answer choices from GMAC:
    business journals' and general consumer magazines' advertising income
    executives' being heavily committed to a course of action

    If you see an answer choice with a plural possessive, do not immediately eliminate the answer choice.
    Instead:
    Check the answer choice for other errors.
    Look for an alternate answer choice that avoids the plural possessive and is free of errors.
    If you are stuck between an answer choice that contains a plural possessive and one that avoids this usage, choose the answer choice without the plural possessive.

    _________________
    Mitch Hunt
    GMAT Private Tutor
    GMATGuruNY@gmail.com
    If you find one of my posts helpful, please take a moment to click on the "Thank" icon.
    Available for tutoring in NYC and long-distance.
    For more information, please email me at GMATGuruNY@gmail.com.

    Thanked by: anant03
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