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
Dhobi's itch is: 
Select and explain. 
A. Tinea corfioris, B. Tinea cruris, C. Tinea barbae, D. Tinea capitis
B: Tinea cruris
Answer: B: Tinea cruris 
Explanation: B. i.e. Tinea cruris