This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
[{'content': 'Seoli cell secrets \nSelect and explain. \nA. Androgen binding protein, B. Testosterone, C. LH, D. FSH', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Androgen binding protein is a protein secreted by testicular Seoli cells along with inhibin and mullerian inhibiting substance. Androgen binding protein probably maintains a high concentration of androgen in the seminiferous tubules.Ref: Ganong&;s review of medical physiology; 24th edition; page no: 421', 'role': 'assistant'}]