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
Highest risk of ectopic pregnancy is associated with : 
Select and explain. 
A. Pelvic inflammatory disease, B. Tubal endometriosis, C. Intrauterine contraceptive device, D. Broad ligament tumours
A: Pelvic inflammatory disease
Answer: A: Pelvic inflammatory disease 
Explanation: Pelvic inflammatory disease