Kathryn Says She Is Deathly Afraid of Spiders

Kathryn says she is deathly afraid of spiders. She refuses to go into any location (garage, basement, attic) where she may run into a spider. Her fear of spiders is so great that she is losing sleep for fear a spider will crawl on her while she is asleep. As a result, her grades are beginning to worsen. Kathryn would probably be diagnosed with:

A) panic disorder.
B) specific phobia.
C) social phobia.
D) obsessive-compulsive disorder.