Who Is Most Likely Suffering from Retrograde Amnesia

Multiple Choice

Who is most likely suffering from retrograde amnesia?

A) Billy, who can't seem to learn a foreign language
B) Margie, who can't remember much of anything prior to being attacked on the street after a late-night party
C) Cecil, who can't remember much of anything after his wife died
D) Mariana, who struggles to remember the names of the people she just met