During Halftime of a University of Illinois Football Game, the Marching

During halftime of a University of Illinois football game, the marching band members stood next to each other to form the shape of a large letter "I." Bob looked at that and said, "All I see is a bunch of individual people standing together." He could not see how they collectively formed a single large letter. Most likely, Bob has

A) prosopagnosia.
B) simultanagnosia.
C) apraxia.
D) alexia without agraphia.