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: Surgery
[{'content': 'Regarding Ca gallbladder - \nSelect and explain. \nA. Squamous cell ca is the most common, B. Present with jaundice, C. Good prognosis, D. All', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer (b) Presents with jaundice', 'role': 'assistant'}]