system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Black dot ring worm is caused by -
assistant
The correct answer is  Ans. is 'b' i.e., Trichophyton o Black dot lesions are seen in Tinea capitis.o The hairs are broken at the level of the skin surface producing a picture of black dots in an area of alopecia,o T. tonsurans is the chief cause of "black dot1' tinea capitis.