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
Oral contraceptive pill containing progesterone which is given in small quantities for 30 days a month is known as : 
Select and explain. 
A. Micro pill, B. Sequential pill, C. Combined pill, D. None of the aboveq
A: Micro pill
Answer: A: Micro pill 
Explanation: Micro pill