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
Uses of woods light includes : 
Select and explain. 
A. Urine examination in porphyria, B. Examination of hair in T. capitis, C. Selerema, D. All
D: All
Answer: D: All 
Explanation: D i.e. All