Can you answer this by reading only the first 3 words of each answer choice?<\/p>\n
Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.<\/p>\n
A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
\nB. mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
\nC. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
\nD. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
\nE. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that<\/p><\/blockquote>\nHere the answer is E. Let me show you how.<\/p>\n
This is a split sentence. Basically in the form of [main sentence, description, main sentence]<\/p>\n
Just take out the description in the middle and read it like this:<\/p>\n
Recently documented examples of neurogenesis include [A] or .<\/p>\n
From this alone, you should be able to eliminate (A), (B), and (C) <\/strong>just be reading the first three words of each answer choice.<\/p>\n
(A): the brain growing
\n(B): mice whose brains
\n(C): mice's brains<\/p>\nNone of these work because they are not structured correctly as examples.<\/p>\n
(D) and (E) are closer to what we want--either \"the brain growth\" or \"brain growth\"<\/span><\/p>\n
The only difference between (D) and (E) is \"when placed\" versus \"that.\"
\n\"When placed\" seems to suggest a more specific condition whereas \"that\" seems more general and a description of a state of being--more of what we're looking for.<\/p>\nAlso, if you were to guess--choose the shorter answer choice<\/span>--the one with fewer words---that would be (E).<\/p>\n
Either way, the one you want here is (E) because it correctly begins with \"brain growth in mice\"--which is an example of a documented example of neurogenesis. And it's consistent with the second part of the sentence.<\/p>\n