Chuck Wildlee,a Baseball Pitcher,was Struck on the Head by a Line

Chuck Wildlee,a baseball pitcher,was struck on the head by a line drive hit by Charley Hussel.Fortunately,Chuck was not seriously injured,but when he was revived,he could not remember how many balls and strikes the batter had.This was because

A) sensory memory had not been converted to short-term memory.
B) short-term memory had not been converted to sensory memory.
C) he lost both sensory and short-term memory.
D) long-term memory had not been converted to a memory engram.
E) long-term memory had not been converted to sensory memory.