Bruce Was Shocked When He Saw a Nun Throw Her

Bruce was shocked when he saw a nun throw her gum wrapper on the sidewalk.This is because

A) the social role associated with nuns doesn't fit with littering behaviour.
B) nuns are supposed to conform to the expectations of others.
C) obedience levels are typically higher among nuns than the general population.
D) cognitive dissonance would predict that nuns would litter less often than others.