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': 'True regarding endo-metriosis associated dysmenorrhea is all except \nSelect and explain. \nA. More severe than primary dysmenorrhea., B. Occurs 24 to 48 hours after start of menses., C. Less responsive to NSAIDs., D. Deep infiltrating endometriosis correlates with severity of dysmenorrhea.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Endometriosis associated dysmenorrhea typically precedes menses by 24 to 48 hours.', 'role': 'assistant'}]