Physical exam of a 43-year-old African American male with a past medical history of left middle cerebral artery stroke six months ago demonstrates markedly reduced muscle mass of his right arm and...

Physical exam of a 43-year-old African American male with a past medical history of left middle cerebral artery stroke six months ago demonstrates markedly reduced muscle mass of his right arm and leg. This type of atrophy affects what muscle fibers?

A. Type I fibers

B. Type II fibers