Critical Reasoning

Disclaimer:This is a LSAT material.Just adding spice to ur prep.Dont attempt if u feel it as a spoiler.

Questions 20-21
Some people have been promoting a new herbal mixture
as a remedy for the common cold. The mixture contains,
among other things, extracts of the plants purple coneflower
and goldenseal. A cold sufferer, skeptical of the
claim that the mixture is an effective cold remedy, argued,
"Suppose that the mixture were an effective cold remedy.
Since most people with coldswish to recover quickly, it
follows that almost everybody with a cold would be using
it. Therefore, since there are many people who have colds
but do not use the mixture, it is obviously not effective."
20. Each of the following is an assumption required by
the skeptical cold sufferer's argument EXCEPT:
(A) Enough of the mixture is produced to provide the
required doses to almost everybody with a cold.
(B) The mixture does not have side effects severe
enough to make many people who have colds
avoid using it.
(C) The mixture is powerful enough to prevent
almost everybody who uses it from
contracting any further colds.
(D) The mixture is widely enough known that
almost everybody with a cold is aware of it.
(E) There are no effective cold remedies available
that many people who have colds prefer to the
mixture.
21. Which one of the following most accurately describes
the method of reasoning the cold sufferer uses to
reach the conclusion of the argument?
(A) finding a claim to be false on the grounds that it
would if true have consequences that are false
(B) accepting a claim on the basis of public opinion
of the claim
(C) showing that conditions necessary to establish
the truth of a claim are met
(D) basing a generalization on a representative
group of instances
(E) showing that a measure claimed to be effective
in achieving a certain effect would actually
make achieving the effect more difficult

IMO:

20 - E
21 - D

Let me know if they are correct, I'll post explanation as well.

My Take

20. C
21. A

E

C

C and A for me...

20. Each of the following is an assumption required by
the skeptical cold sufferer's argument EXCEPT:
(A) Enough of the mixture is produced to provide the
required doses to almost everybody with a cold.
(B) The mixture does not have side effects severe
enough to make many people who have colds
avoid using it.
(C) The mixture is powerful enough to prevent
almost everybody who uses it from
contracting any further colds. passage doesn't talk about further cold.. it present the cure of Cold....

(D) The mixture is widely enough known that
almost everybody with a cold is aware of it.
(E) There are no effective cold remedies available
that many people who have colds prefer to the
mixture.
21. Which one of the following most accurately describes
the method of reasoning the cold sufferer uses to
reach the conclusion of the argument?
(A) finding a claim to be false on the grounds that it
would if true have consequences that are false

Passage says that claim is false because the public would have shown the effect if the claim is true.. but as general public not showing the effect ... this refers to the claim is false..

(B) accepting a claim on the basis of public opinion
of the claim
(C) showing that conditions necessary to establish
the truth of a claim are met
(D) basing a generalization on a representative
group of instances
(E) showing that a measure claimed to be effective
in achieving a certain effect would actually
make achieving the effect more difficult

OA plz..

IMO

C

A

OA please.

I will go with C & D.

Cannot decide between C and D. Can anyone brake down these two choices for me please