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: Gynaecology & Obstetrics
Red degeneration in a case of fibroid with pregnancy occurs most often during : 
Select and explain. 
A. First trimester, B. Second trimester, C. Third trimester, D. Puperium
B: Second trimester
Answer: B: Second trimester 
Explanation: Second trimester