This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endometriosis and Infertility, Subject name: Gynaecology & Obstetrics
[{'content': 'The cells which lie outside blood testis barrier: \nSelect and explain. \nA. Sertoli cells, B. Spermatocyte, C. Spermatid, D. Leydig cells', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is d, i.e. Leydig cellsBlood testis barrier is formed by Sertoli cells which keeps the growing germ cells (its all stages) separated from blood.', 'role': 'assistant'}]