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: Unknown
[{'content': 'A 38-year-old woman presents with painless post-coital bleeding. She had a cone biopsy for carcinoma in situ five years ago. Her last smear was three months ago, following this. Her last period was six weeks ago.Mostproable diagnosis is: \nSelect and explain. \nA. Carcinoma of cervix, B. Ectopic pregnancy, C. Endometrial carcinoma., D. Uterine fibroids.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The recurrence of abnormal vaginal bleeding in a patient with a previous history of a cone biopsy would raise concerns of carcinoma of the cervix.\nHer last smear was nearly five years ago,indicating she defaulted from follow-up after her cone biopsy.\nSix weeks amenorrhoeamight raise concerns about an ectopic pregnancy but the absence of pain makes this unlikely.\nIt would always be wise to perform a pregnancy test and scan if in any about.', 'role': 'assistant'}]