Which Factors Differentiate a Client Diagnosed with Social Phobia from a Client

Which factors differentiate a client diagnosed with social phobia from a client diagnosed with schizoid personality disorder?

A) Clients diagnosed with social phobia are treated with cognitive behavioral therapy, whereas clients diagnosed with schizoid personality disorder need medications.
B) Clients diagnosed with schizoid personality disorder experience anxiety only in social settings, whereas clients diagnosed with social phobia experience generalized anxiety.
C) Clients diagnosed with social phobia avoid attending birthday parties, whereas clients diagnosed with schizoid personality disorder would isolate self on a continual basis.
D) Clients diagnosed with schizoid personality disorder avoid attending birthday parties, whereas clients diagnosed with social phobia would isolate self on a continual basis.