This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
A patient is always preoccupied with feeling of illness. Diagnosis is: Kerala 06; NIMHANS 08; UP 08; Punjab 11 
Select and explain. 
A. Hypochondriasis, B. Somatization disorder, C. Conversion disorder, D. Obsession
A: Hypochondriasis
Answer: A: Hypochondriasis 
Explanation: Ans. Hypochondriasis