Sharon Is 60 and Has Experienced Slowness of Thought Over

Multiple Choice

Sharon is 60 and has experienced slowness of thought over the last year.She goes to her doctor to discuss why this is.Her doctor is most likely to tell her that slowed mental processes are a result of

A) increases in muscle mass.
B) shrinking frontal lobes.
C) exercising too much.
D) experiencing a senior moment.