This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary Tract, Subject name: Surgery
[{'content': 'Strangury is: \nSelect and explain. \nA. Renal colic, B. Pain due to twisted ovarian cyst, C. Biliary colic, D. Painful frequent attempt at micturation and passing only a small quantity each time', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans: d (Painful frequent attempt at micturation passing.....) Ref: S. Das, p. 339Strangury - Painful frequent attempts at micturation but passing only a small quantity each time.Conditions:* Stone impacted in the lower end of the ureter & stone in the bladder (most common)* Inflammatory conditions in the neighborhood of the bladder and ureter such as retrocaecal appendicitis, pelvic appendicitis & pelvic peritonitisTenesmus - Ineffectual straining at stool with passage of mucous and bloodCauses:* Pelvic appendicitis or pelvic abscess, irritation of rectum', 'role': 'assistant'}]