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': 'All predisposes to isoimmunisation in a Rh-ve female except : \nSelect and explain. \nA. Advanced maternal age, B. Antepaum hemorrhage, C. Cesarean section, D. Post dated pregnancy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a i.e. Advanced maternal age Conditions predisposing to isoimmunization in Rh -ve female Aboiondeg, ectopic pregnancy, molar pregnancy * Chorionic villous samplingdeg, Cordocentesis * Trauma Amniocentesisdeg * Antepaum hemorrhage Attempted versiondeg * Vaginal delivery Manual removal of placenta * Cesarean section', 'role': 'assistant'}]