The correct option is C Trichomoniasis
Trichomoniasis is a disease caused by a protozoan, Trichomonas vaginalis.
Hepatitis B is a viral infection caused by the Hepatitis B virus.
Chlamydiasis is a disease caused by a bacterium, Chlamydia trachomatis.
Genital Herpes is a viral disease caused by the Herpes simplex virus.