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': 'Which of the following matrix metalloproteinase expression is increased in endometriosis \nSelect and explain. \nA. MMP-1, B. MMP-2, C. MMP-3, D. MMP-4', 'role': 'user'}, {'content': 'Answer: C \nExplanation: MMP-3 expression is significantly increased in women with endometriosis.', 'role': 'assistant'}]