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
Tinea unguium effects – 
Select and explain. 
A. Nail fold, B. Nail plate, C. Joints, D. Inter digital space
B: Nail plate
Answer: B: Nail plate 
Explanation: Tinea unguium starts either from distal edge of nail plate or from base of nail. It slowly involves the entire nail plate.