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: Anatomy
[{'content': 'Diameter of female urethra is: \nSelect and explain. \nA. 3 mm, B. 4 mm, C. 5 mm, D. 6 mm', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Female urethraIt is about 1.5 inches (3.8 cm) to 2 inches (5.1 cm) long and exits the body between the clitoris and the vagina, extending from the internal to the external urethral orifice.Its diameter when undilated is about 6 mm.', 'role': 'assistant'}]