Which of the Following Is the Best Example of Generalized

Which of the following is the best example of generalized anxiety disorder?

A) Terri has a history of panic attacks in a variety of settings, and she spends most of her time at home because she is afraid of having an "attack" in public.
B) Alan refuses to eat in restaurants because he is afraid of embarrassing himself in a crowd.
C) For about eight months, Brandi has had several brief episodes of intense anxiety during which she feels as if she is losing her mind, after which she feels relatively calm.
D) Greg has been under a vague but persistent "cloud" of worry for nearly a year.