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: Surgery
True about undescended testes 
Select and explain. 
A. Normal testosterone, B. Normal spermatogenesis, C. Normally physiological descend occurs upto 18 months, D. Testes deviates from normal path
A: Normal testosterone
Answer: A: Normal testosterone 
Explanation: Leydig cells are not affected so testosterone levels normal.
Sertoli cells are affected so spermatogenesis is affected.