The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Non-visualization of gallbladder in hepatic scintigraphy is suggestive of:   (A) Chronic cholecystitis   (B) Carcinoma gallbladder   (C) Acute cholecystitis due to gallstones   (D) Gallstones obstructing CBD
['(C) Acute cholecystitis due to gallstones <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Chronic cholecystitis \n (B) Carcinoma gallbladder \n (C) Acute cholecystitis due to gallstones \n (D) Gallstones obstructing CBD <> possible answers', '  Non-visualization of gallbladder in hepatic scintigraphy is suggestive of: <> context@']