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: Psychiatry
A 20-year-old female presented with complaints of nausea, vomiting and pain in the legs. Her physical examination and lab investigations are normal. Still she persistently request for investigations and treatment despite repeated assurance by her doctor. What would be the most probable diagnosis: September 2012 
Select and explain. 
A. Generalized anxiety disorder, B. Conversion disorder, C. Somatiform pain disorder, D. Somatisation disorder
C: Somatiform pain disorder
Answer: C: Somatiform pain disorder 
Explanation: Ans. C i.e. Somatisatic 7 disorder Somati3ation disorder Patient presents with multiple physical complaints (referable to different organ systems), Formal diagnostic criteria require the recording of at least 4 pains: - 2 gastrointestinal, - 1 sexual and - 1 pseudo-neurologic symptom