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: Microbiology
Black dot ringworm is caused by - 
Select and explain. 
A. Microsporum, B. Trichophyton, C. Epidermophyton, D. Candida
B: Trichophyton
Answer: B: Trichophyton 
Explanation: Black dot lesions are seen in Tinea capitis.
The hairs are broken at the level of the skin surface producing a picture of black dots in an area of alopecia.
T. tonsurans is the chief cause of "black dot" tinea capitis.