Question

how is syphilis transmitted?
breathing contaminated air
exchange of body fluids
direct contact with a sore
sharing a drinking vessel

Explanation:

Syphilis is a sexually transmitted infection. It is mainly transmitted through sexual contact (which involves exchange of body fluids like semen, vaginal secretions etc.). It can also be transmitted from an infected mother to her fetus (also involving transfer of fluids in a way). Also, direct contact with a syphilis sore (chancre) during sexual activity can lead to transmission. Breathing contaminated air (A) and sharing a drinking vessel (D) are not typical modes of syphilis transmission as the causative agent (Treponema pallidum) is not spread through these routes.

Answer:

B. exchange of body fluids, C. direct contact with a sore