The Main Difference Between a Phobic Disorder and a Generalized

The main difference between a phobic disorder and a generalized anxiety disorder is that

A) the phobic disorder is more severe and more difficult to treat.
B) anxiety has a specific focus in a phobic disorder, but is "free-floating" in a generalized anxiety disorder.
C) generalized anxiety disorders depend on past conditioning, whereas phobic disorders tend to be genetic.
D) the generalized anxiety disorder occurs primarily in men and the phobic disorder occurs primarily in women.