This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Radiology
[{'content': 'A 40yr old patient came in emergency depament with abdominal colic and features of obstructive jaundice Her cous and liver enzymes were elevate A USG was done and gallbladder was scleroatrophic and CBD was impacted with stones along with IHBR dilation Which is the next step in the MANAGEMENT of this patiemnt \nSelect and explain. \nA. cholecystectomy, B. ERCP -MRCP, C. CT SCAN, D. NONE', 'role': 'user'}, {'content': 'Answer: B \nExplanation: REF : DAVID SUTTON 9TH ED', 'role': 'assistant'}]