In One Study,patients with Language Difficulties Due to Damage to the Left

In one study,patients with language difficulties due to damage to the left sides of their brains were given language comprehension training.The training helped improve the patients' language comprehension with brain images revealing

A) increased activity throughout both sides of the brain, including areas directly adjacent to the damaged areas.
B) no change in brain activity due to the language comprehension training.
C) neurogenesis of brain cells in the damaged areas of the left sides of their brains.
D) more activity in the undamaged right sides of their brains to compensate for their damaged left sides.