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: Social & Preventive Medicine
IUCD is made up of ? 
Select and explain. 
A. Nickel, B. Strontium, C. Copper, D. Polyethylane
D: Polyethylane
Answer: D: Polyethylane 
Explanation: Ans. is 'd' i.e., Polyethylane