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
Heterotopicpregnancy - 
Select and explain. 
A. Incidence is l0%, B. Occurs following assisted reproductive techniques, C. Has two extrauterine gestational sacs, D. Has one gestational sac in fallopian tube and other intrauterine
B: Occurs following assisted reproductive techniques
Answer: B: Occurs following assisted reproductive techniques 
Explanation: Ans. is'b'i.e., Occurs following assisted reproductive techniques Heterotopic pregnancyIt is the rare simultaneous existence of intrauterine and extrauterine gestational sacs.Itisararecomplicationofmultiplepregnancy,butitsincidenceincreasestol% ofthepregnanciesfollowingassistedreproductive techniques.