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': 'All of the following come in relation with the urethral crest which is situated in the prostatic pa of the urethra, except: \nSelect and explain. \nA. Ejaculatory ductus, B. Prostatic utricle, C. Prostatic sinus, D. Colliculus seminalis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ejaculatory ductus', 'role': 'assistant'}]