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: Dental
In leprosy neural involvement occurs in what percentage of patients – 
Select and explain. 
A. 30%, B. 60%, C. 90%, D. 100%
D: 100%
Answer: D: 100% 
Explanation: Nerve involvement is universal (100%) in leprosy. However, 100% patients do not develop symptoms of neural involvement.