This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Medicine
An 8th month primigravida presented with severe pruritus. Examination revealed mild icterus. Her serum bilirubin was 3mg/dl. She has elevated AST, ALT and Alkaline phosphatase. Her RFT and coagulation profile were within normal limits. She could probably be having? 
Select and explain. 
A. HELLP syndrome, B. Hepato renal syndrome, C. Obstetric cholestasis, D. Viral hepatitis
C: Obstetric cholestasis
Answer: C: Obstetric cholestasis 
Explanation: The presence of pruritus with jaundice points to presence of cholestatic component. The presence of SAP increasing the credibility of diagnosis of obstetric cholestasis HELLP syndrome is ruled out as coagulation profile is normal Hepatorenal syndrome is ruled out as RFT is normal. The closest choice is viral hepatitis which presents with jaundice with marked elevation of AST, ALT and SAP being mostly normal.