Michelle Feels That Everything She Touches Is Contaminated and Dirty

Michelle feels that everything she touches is contaminated and dirty, so she cleans her house from morning to night and writes down what she cleans in a book. Once she cleans something, she avoids touching it. If she were to touch the object, it would become contaminated, and she would have to clean it again. Michelle would most likely be diagnosed with a(n)

A) conversion disorder.
B) obsessive-compulsive disorder.
C) dissociative disorder.
D) generalized anxiety disorder.