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
IUCD with highest incidence of ectopic pregnancy is : 
Select and explain. 
A. Lippe's loop, B. Copper T, C. Progestase, D. All have equal incidence
C: Progestase
Answer: C: Progestase 
Explanation: Progestase