This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and Reproduction, Subject name: Physiology
[{'content': 'Fuel for sperm motility \nSelect and explain. \nA. Glucose, B. Fructose, C. Fatty acids, D. Prostatic acid phosphatase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Fructose', 'role': 'assistant'}]