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
After first meiotic division, the primary oocyte remains arrested in - 
Select and explain. 
A. Diplotene stage, B. Pachytene stage, C. Metaphase, D. Telophase
A: Diplotene stage
Answer: A: Diplotene stage 
Explanation: None