This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
Norplant contains how many capsules of levonorgestrel: 
Select and explain. 
A. 4, B. 6, C. 8, D. 10
B: 6
Answer: B: 6 
Explanation: Norplant contains a set of 6 capsules each containing 36mg levonorgestrel for subcutaneous implantation-placed subcutaneously in the medial aspect of upper arm (Ref.Essentials of medical pharmacology TD Tripathi 6th edition page no.323)