A client who is concerned that she may have serious heart disease seeks help at the mental health ...

A client who is concerned that she may have serious heart disease seeks help at the mental health
  center after a referral from the internist who told her that she has no physical illness.
 
  The client
  reports she has had tightness in her chest and the sensation of her heart missing a beat. Because of
  her concern over her symptoms, she has missed much time from work over the past 2 years. Her
  social life has been severely restricted because she believes she must rest each evening. The client
  can be assessed as having symptoms consistent with
  a. somatization disorder.
  b. dysthymic disorder.
  c. antisocial disorder.
  d. hypochondriasis.