This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Contraception, Subject name: Gynaecology & Obstetrics
Acceptable ontraceptive for lactating mother are all except : 
Select and explain. 
A. Barrier method, B. Combined OCP, C. Lactational amenorrhoea, D. Progesterone only pill
B: Combined OCP
Answer: B: Combined OCP 
Explanation: In breastfeeding women the POP has no adverse effect on the volume or composition of milk. TEXTBOOK OF GYNECOLOGY SHEILA BALAKRISHNAN SECOND EDITION PAGE NO 370