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: Pediatrics
Duchenne's muscular dystrophy is a disease of- 
Select and explain. 
A. Neuromuscular junction, B. Sarcolemmal proteins, C. Muscle contractile proteins, D. Disuse atrophy due to muscle weakness
C: Muscle contractile proteins
Answer: C: Muscle contractile proteins 
Explanation: Ans. is 'c' i.e., Muscle contractile proteins