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: Physiology
[{'content': 'Asthenospermia means: September 2005 \nSelect and explain. \nA. Reduction in number of sperms, B. Reduction in motility of sperms, C. Absence of sperms, D. Absence of semen', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Reduction in motility of sperms Asthenozoospermia/"asthenospermia" is the term for reduced sperm motility. It decreases the sperm quality and is therefore one of the major causes of infeility or reduced feility in men', 'role': 'assistant'}]