A 30 yr old woman cannot stop worrying about whether she might have accidentally run over a person when she last drove her car. She is temporarily reassured when she calls the local police station to see if anyone was killed by a hit and run driver while she was on the road, but the next time she drives, her fear returns with even greater intensity. What is the most likely diagnosis?
A. Panic disorder
B. Generalized anxiety disorder
C. Obsessive compulsive disorder
D. Posttraumatic stress disorder
E. Substance induced anxiety disorder

A. Panic disorder
B. Generalized anxiety disorder
C. Obsessive compulsive disorder
D. Posttraumatic stress disorder
E. Substance induced anxiety disorder