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
Tinea ungium affects: 
Select and explain. 
A. Nail fold, B. Nail plate, C. Joints, D. Interdigital space
B: Nail plate
Answer: B: Nail plate 
Explanation: Tinea unguium is clinically defined as dermatophytic infection of the nail plate. Dermatophytic Skin Disease Location Of Lesions Tinea corporis Nonhairy, smooth skin. Tinea pedis (athlete's foot) Interdigital spaces on feet of persons wearing shoes. Tinea cruris (jock itch) Groin. Tinea capitis Scalp hair. Tinea barbae Beard hair (Note -Sycosis barbae is folliculitis of beard hair caused by Staphylococcus) Tinea unguium Nail Tinea Manuum Hand