This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynae & OBS, Subject name: Medicine
[{'content': 'Asthenospermia means: \nSelect and explain. \nA. Immotile sperms, B. Absent sperms, C. Dead sperms, D. Dysmorphic sperms', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans: A (Immotile sperms) Ref: Harrison's 18th edn.Explanation:Azoospermia - Absence of sperm in the ejaculate.Aspermia - Zero volume ejaculate.Oligospermia - Low numbers of sperm.Asthenospermia - Poor sperm motility.Teratospermia - Abnormal morphology (shape) of sperm.", 'role': 'assistant'}]