<prompt> Which of the following can cause endothrix Black dot i. Trichophyton violaceum ii. Trichophyton tonsurans iii. Trichophyton veruccosum iv. Microsporum canisii iii, ii iiii, ii, iii iv  <response>: Endothrix:T.tonsurans T. violaceum, Ectothrix: M. canis. 