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
A washerman presents with thickness erosion & discolouration of web spaces of toes diagnosis is: 
Select and explain. 
A. Psoriasis, B. Tinea Unguum, C. Both, D. Candidiasis
D: Candidiasis
Answer: D: Candidiasis 
Explanation: D i.e Candidiasis