Which of the Following Statements Is True with Regard to the Treatment

Which of the following statements is true with regard to the treatment of somatic symptom disorders?

A) Cognitive-behavioral treatment has been demonstrated in several studies to be a very effective treatment.
B) It is relatively easy to treat as long as the patient is willing to participate in therapy.
C) Primary care physicians can usually treat patients by educating and reassuring patients.
D) They are difficult to treat and there are no treatments with proven effectiveness.