La belle indifference describes which feature of a psychological disorder?

La belle indifference describes which feature of a psychological disorder?
 
  a. The tendency for people with functional neurological symptom disorder to be unconcerned about their symptoms
  b. The tendency for people with dissociative identity disorder to have been highly imaginative as children c. The tendency for people with depression to have a maladaptive attributional style
  d. The tendency for people with bipolar disorder to swing dramatically from one end of the mood spectrum to the other
  e. The tendency for people with depression to show indifference toward their future