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: Anatomy
Meiosis in spermatogenesis occurs in which of the following step? 
Select and explain. 
A. Primary spermatocyte to intermediate spermatocyte, B. Primary spermatocyte to secondary spermatocyte, C. Secondary spermatocyte to round spermatid, D. Round spermatid to elongated spermatid
B: Primary spermatocyte to secondary spermatocyte
Answer: B: Primary spermatocyte to secondary spermatocyte 
Explanation: B i.e. Primary spermato cyte to secondary spermatocyte