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
[{'content': 'Red degeneration occurs maximally in : \nSelect and explain. \nA. 1st trimester, B. IInd trimester, C. IIIrd trimesterPuerperium, D. Pueroerium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: llnd trimester', 'role': 'assistant'}]