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': 'Heterotopic pregnancy- \nSelect and explain. \nA. Incidence is 10%, B. Has no association to assisted reproductive techniques, C. Has two extrauterine gestational sacs, D. Has one gestational sac in fallopian tube and other intrauterine', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is D' Has one gestational sac in fallopian tube and other intrauterine Heterotopic pregnancy o It is the rare simultaneous existence of intrauterine and extrauterine gestational sacs. o It is a rare complication of multiple pregnancy, but its incidence increases to 1 % of the pregnancies following assisted reproductive techniques. A heterotopic pregnancy is a rare complication of pregnancy in which both extra-uterine (ectopic pregnancy) and intrauterine pregnancy occur simultaneously. It may also be referred to as a combined ectopic pregnancy, multiple-sited pregnancy, or coincident pregnancy.", 'role': 'assistant'}]