Answer:
The birth control method that reduces the risk of pregnancy while protecting against sexually transmitted infections is the condom (option B).
Step-by-step explanation:
The condom is a birth control method that consists of a latex sheath that covers the entire penis, preventing the passage of semen into the vagina.
An additional benefit of the condom is that, by covering the entire surface of the man's genital surface contact, it prevents the transfer of germs responsible for sexually transmitted diseases (STD).
The other options are not correct because:
A. Birth control pills are a hormonal contraceptive method, it does not prevent STD infections.
C. Diaphragm, despite being a barrier method, does not prevent contact between the male and female genitals.
D. Vasectomy is a surgical method of birth control, which also does not prevent STDs.