<prompt> Which of the following is a feature of hypochondriasis?Abnormal preoccupation with abnormal body functionAbnormal preoccupation with normal body functionNormal preoccupation with abnormal body functionNormal preoccupation with normal body function  <response>: In Hypochondriasis, patients are preoccupied with the fear of having a serious disease based on misinterpretation of bodily signs and sensations. This fear persists even in the presence of evidence to the contrary and physicians reassurance or evidence from investigations. Ref: Current Medical Diagnosis and Treatment : Psychiatry 2nd edition chapter 22. 