Final answer:
The best contraceptive method for protection against sexually transmitted diseases for a woman with multiple sexual partners is the correct and consistent use of latex condoms.
Step-by-step explanation:
The contraceptive method that offers the most protection against sexually transmitted diseases (STDs) for a woman who is sexually active with multiple partners is the use of latex condoms. Latex condoms provide a significant reduction in the risk of transmission of STIs, including HIV, when used consistently and correctly. It is important to note that while other contraceptive methods may prevent pregnancy, they do not offer the same level of protection against STIs.
Comprehensive sex education and safe sex practices are also critical components in reducing the risk of STIs. This includes using condoms correctly every time during sexual activity, limiting the number of sexual partners, and engaging in mutually monogamous relationships. Abstinence from sexual activity is the only way to be absolutely certain of avoiding STIs, but for sexually active individuals, latex condoms are the best option for protection.