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': 'Ovulation in a female with 38 day cycle is : \nSelect and explain. \nA. 14th day, B. 8th day, C. 24th day, D. 30th day', 'role': 'user'}, {'content': 'Answer: C \nExplanation: 24th day', 'role': 'assistant'}]