1 Aphasia, an impairment of the capacity to use
language, often occurs when a stroke damages the
left half of the brain. Many people with stroke-related
aphasia recover at least some capacity to use
language within a year. One proposed explanation for
such recoveries is that the right side of the brain,
which is not usually the major language center,
develops its latent language capabilities to
compensate for the damage to the left side.
Which of the following, if true, most strongly supports
the explanation?

(A) In a study of local brain activity in people
performing a language task, people with strokerelated
aphasia showed higher activity levels in
the right half of the brain than people who did
not have aphasia.

(B) A blow to the head injuring the left half of the
brain can result in impairment of the capacity to
use language indistinguishable from that
produced by a stroke.

(C) Among people with stroke-related aphasia,
recovering lost capacity to use language does
not lead to any impairment of those capacities
normally controlled by the right half of the brain.

(D) A stroke that damages the left half of the brain
often causes physical impairments of the right
side of the body that lessen over time.

(E) Studies of numerous people with aphasia have
indicated that the functions that govern language
production and those that govern language
comprehension are located in separate areas of the brain