This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'Which of the following cells is the germ cell closest to the basal lamina in the seminiferous tubule? \nSelect and explain. \nA. Primary spermatocyte, B. Secondary spermatocyte, C. Spermatid, D. Spermatogonia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Maturation of germ cells (spermatogenesis) within the seminiferous tubules occurs in a concentric pattern, with the less mature spermatogonia near the basal lamina and the mature forms near the tubuleft center.', 'role': 'assistant'}]