A 28 year old male admitted in the hospital with a history of vague pain.His examination revealed many scars of previous surgeries.He was very curious about knowing his diagnosis and was persistently asking for various diagnostic procedure and biopsy.He gave the past history of gall stone and appendicitis pain diagnosed by previous doctors, but the history regarding this way inappropriate and semed to be manipulative.There was no previous record suggesting this diagnosis.The probable diagnosis is -

• A. Somatization disorder
• B. Conversion disorder
• C. Hypochondriasis
• D. Factitious disorder