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': 'Features of healthy gallbladder on laparotomy are all except \nSelect and explain. \nA. Typical "sea-green" coloured, B. Wall is thin and elastic, C. Can be emptied, D. Not easily visible', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Healthy Gallbladder Greenish blue or sea-green color Thin and elastic wall Can be emptied by squeezing Ref: Sabiston 20th edition Pgno : 1494', 'role': 'assistant'}]