This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'All the following are benefits of surgical evacuation compared to medical regimens except \nSelect and explain. \nA. No need of follow up, B. Bleeding predictable, C. Invasive procedure, D. Failure rate is less', 'role': 'user'}, {'content': 'Answer: C \nExplanation: FactorMedical RxSurgical RxInvasiveNoYesPainMoreLessVaginal bleedingProlonged, unpredictableLight, predictableIncomplete aboionMore commonUncommonFailure rate2-5%1%Severe bleeding0.1%0.1%Infection rateLowLowAnesthesiaUsually noneYesTime involvedMultiple visits, follow upOne visit, no follow upReference: Textbook of Obstetrics; Sheila Balakrishnan', 'role': 'assistant'}]