This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
[{'content': 'True about CA GB \nSelect and explain. \nA. Most commonly presents with obstructive jaundice, B. 90% associated with gallstones, C. 5-year survival is 35%, D. 30% are squamous cell carcinoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Option A: most commonly presents with right upper quadrant pain often mimicking cholecystitis and cholelithiasis not jaundice (it is less common presenting symptom) OptionB: Cholelithiasis is seen in 75-98% of all patients with CA GB Option C: 5 year survival is 25% Option D: No squamous type histological pattern Ref: Sabiston 20th edition Pgno :1512-1514', 'role': 'assistant'}]