This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: mycology, Subject name: Microbiology
The organism that does not infect hair is 
Select and explain. 
A. Trichophyton rubrum, B. Epidermophyton floccosum, C. Microsporum, D. All
B: Epidermophyton floccosum
Answer: B: Epidermophyton floccosum 
Explanation: Trichophyton- hair, skin and nail. Microsporum- hair and skin. Epidermophyton- skin and nail. Reference: Textbook of Microbiology; Baveja; 4th edition .