In Obsessive-Compulsive Disorder, a Common Obsession

In obsessive-compulsive disorder, a common obsession:

A) Is that of contamination and washing or avoidance of a particular object that is contaminated
B) Involves repetitive behaviors in response to preoccupations with perceived flaws in physical appearance
C) Is a marked fear of being the center of attention or behaving in a way that will result in embarrassment or humiliation
D) None of the above