A Man Holds a Rectangular Card in Front of and Parallel

Multiple Choice

A man holds a rectangular card in front of and parallel to a plane mirror.In order for him to see the entire image of the card, the least mirror area needed is:

A) that of the whole mirror, regardless of its size
B) that of the pupil of his eye
C) one-half that of the card
D) one-fourth that of the card
E) an amount which decreases with his distance from the mirror