A Treatment for Trichomoniasis Is a Single Dose of Metronidazole

A treatment for trichomoniasis is a single dose of metronidazole (Flagyl) .A woman asks if her sexual partner should be treated also.The appropriate answer is:

A) sexual partners should be treated only if symptoms are present.
B) sexual partners should be treated even if asymptomatic.
C) infections in men are self-limiting; therefore, a male sexual partner does not require treatment.
D) sexual partners should be treated in order to prevent infection.