examples of neurogenesis

[ska7945]

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.

(A) the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
(B) mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
(C) mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
(D) the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
(E) brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

[stop@800]

Got confused a bit between A and D bit will prefer A.

[mastbombay]

The sentence talks bou the examples of neurogenesis.........
Example are brain growth in mice....or increase in neurons in can..and not the mice itself or canaries itself or mice brain...........
its about growth of mice brain.......

Hence B anc C out......

Obviously brain growth is bette than brain growing.......

hance A out.....

between D and E......

in D ......the construction......

the brain growth in mice when placed in a stimulating environment

suggests that...... brain growth is placed in stinulating env.......when actually mice are placed in stimulating env........Hence E wins

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.

(A) the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
(B) mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
(C) mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
(D) the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
(E) brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

[niraj_a]

E for me too, hands down.

[NSNguyen]

(A) the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
(B) mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they (C) mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
(D) the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
(E) brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

A expresses paralell growing ....increasing..
does not acquice "they" using mistake

[vineetbatra]

Can someone please explain why they is ambiguous in B and C, they is referring to mice and Canaries.