The correct verbs that agree with the subject "everyone" are:
- is
- agrees
Since "agree" was not one of your provided options but "agree" is typically used in the plural context, based on the choices you've listed, the correct answers would be:
- is
- relies
However, typically, "everyone" takes a singular verb, so "is" is definitely correct. For "think" and "were," those are plural, and "agree" would be used differently in context.
If there's any confusion due to missing options like "agrees," please clarify!