This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fungal infections, Subject name: Dental
Most common type of Onychomycosis 
Select and explain. 
A. Proximal Subungual, B. Distal lateral subungual, C. Superficial white, D. Total distal
B: Distal lateral subungual
Answer: B: Distal lateral subungual 
Explanation: Onychomycosis is a fungal infection of nails MC site for onychomycosis: hyponychium Types 1. Distal lat.subungual onychomycosis- MC 2. Proximal subungual onychomycosis (rare)-In HIV+ patient 3. Superficial white onychomycosis4. Total dystrophic onychomycosis- it is the end result of either of the types. It is complete nail involvement.