A sexually active 16-year-old male is allergic to latex. He should be taught that:

Rationale: A. Latex condoms can trigger allergic reactions in individuals with latex allergy, so they should be avoided. B. Synthetic condoms (e.g., polyurethane or polyisoprene) are safe alternatives for individuals with latex allergy and offer STI protection comparable to latex condoms when used correctly. C. Cervical caps are not effective for preventing STIs and are primarily a contraceptive method for the female partner. D. Foam spermicide may reduce pregnancy risk but does not reliably protect against STIs and is not a substitute for barrier protection.