In the Context of Brain Stimulation and Memory, Identify a Finding

In the context of brain stimulation and memory, identify a finding of research on transcranial direct current stimulation.

A) Implicit memory and working memory are damaged when the prefrontal cortex is stimulated.
B) Stimulation dur­ing sleep improves recall of word pairs and of pictures in young and older adults.
C) The higher the charge applied during the stimulation, the better one's recall abilities become.
D) The electrical stimulation of temporoparietal lobes degrades word recognition memory in Alzheimer's patients.