Which of the following can cause endothrix (Black dot)
 i. Trichophyton violaceum 
 ii. Trichophyton tonsurans 
 iii. Trichophyton veruccosum 
 iv. Microsporum canis: (A) i, (B) i & ii, (C) i, ii & iii, (D) i, ii, iii & iv
Answer is B. Endothrix:T.tonsurans T. violaceum, 
Ectothrix: M. canis.