The key rationale for lesion studies is that?

The key rationale for lesion studies is that
A ) the change in behavior that follows a brain lesion can give important clues about a function of an ablated brain area.
B ) lesions are simple to create within the brain.
C ) brain lesions are specific for fibers of passage.
D ) brain lesions reliably produce marked and observable changes in behaviors.
E ) most lesions are temporary.