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