Answer: The STD that is NOT caused by a virus is B; trichomoniasis.
Step-by-step explanation:
This STD is not caused by a virus like the other options given above. This STD is caused by a parasite. Many people do not even know they are infected until diagnosed by a medical professional. It is curable and a round of antibiotics will clear up the trichomoniasis.
The symptoms that may appear when a person has this STD are; burning when urinating, itchiness, and foul smelling discharge.