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
Which of these does not undergo division: 
Select and explain. 
A. Spermatoid, B. Primary spermatocyte, C. Secondary spermatocyte, D. Spermatogonia
A: Spermatoid
Answer: A: Spermatoid 
Explanation: Spermatoid