Problem: A 32-year-old man presents on referral from his primary care provider. He reports a 6-month history of recurrent bouts of anxiety associated with chest pain, tachycardia, tremors, nausea, diaphoresis, and an impending sense of doom. The episodes last approximately 20 minutes and he is unable to identify a precipitating event. The patient has become increasingly isolated for fear of not wanting to have this sort of episode in public. The primary care provider started him on a selective serotonin reuptake inhibitor (SSRI) 6 months ago but he continues to have the symptoms. Which adjunctive psychotherapy would be most appropriate for this patient? A. Eye movement desensitization and reprocessing (EMDR) therapy B. Interpersonal therapy C. Supportive psychotherapy D. Cognitive behavioral therapy