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: Skin
Not true about lepromin test is 
Select and explain. 
A. It is diagnostic, B. Negative in infants < 6 months, C. Used to classify, D. BCG vaccination may conve negative to positive
A: It is diagnostic
Answer: A: It is diagnostic 
Explanation: A i.e. It is diagnostic