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Scientists have recently found (OG2016)

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boomgoesthegmat Senior | Next Rank: 100 Posts Default Avatar
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Scientists have recently found (OG2016)

Post Thu May 05, 2016 8:34 pm
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    Scientists have recently found evidence that black holes- regions of space in which matter is so concentrated and the pull of gravity so powerful that nothing, not even light, can emerge from them- probably exist at the core of nearly all galaxies and the mass of each black hole is proportional to its host galaxy.

    A) exist at the core of nearly all galaxies and the mass of each black hole is proportional to

    B) exist at the core of nearly all galaxies and that the mass of each black hole is proportional to that of

    C) exist at the core of nearly all galaxies, and that the mass of each black hole is proportional to

    D) exists at the core of nearly all galaxies, and that the mass of each black hole is proportional to that of

    E) exists at the core of nearly all galaxies and the mass of each black hole is proportional to that of

    OA: B

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    OptimusPrep Master | Next Rank: 500 Posts
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    Post Sat May 07, 2016 8:14 pm
    boomgoesthegmat wrote:
    Scientists have recently found evidence that black holes- regions of space in which matter is so concentrated and the pull of gravity so powerful that nothing, not even light, can emerge from them- probably exist at the core of nearly all galaxies and the mass of each black hole is proportional to its host galaxy.

    A) exist at the core of nearly all galaxies and the mass of each black hole is proportional to

    B) exist at the core of nearly all galaxies and that the mass of each black hole is proportional to that of

    C) exist at the core of nearly all galaxies, and that the mass of each black hole is proportional to

    D) exists at the core of nearly all galaxies, and that the mass of each black hole is proportional to that of

    E) exists at the core of nearly all galaxies and the mass of each black hole is proportional to that of

    OA: B
    Points of judgement -

    1. black holes is plural, hence we need a plural verb - exist.
    Eliminate D and E

    2. Comparison. The mass of the black hole needs to be compared to the mass of the galaxy
    Eliminate A and C

    Correct Option: B

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    Nina1987 Senior | Next Rank: 100 Posts Default Avatar
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    Post Tue May 17, 2016 10:55 am
    What about the COMMA before 'and' in choice C. Isnt that wrong?

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