Answer the following question given this paragraph: 

The only completely effective way to prevent infection with STIs is to avoid sexual contact and other risky behaviors. Using condoms can lower the risk of becoming infected with STIs during some types of sexual activity. However, condoms are not foolproof. Pathogens may be present on areas of the body not covered by condoms. Condoms can also break or be used incorrectly.


Q: What is the only way to completely avoid stis?

 Choices:

- cover your mouth

- oral sex

- contraceptive use

- avoid sexual contact

A:
avoid sexual contact
