I need help with math

This would be an open primary. a closed primary people can vote only prior to election day if the party if they are registered. independent voters can not participate. there is not a wide-open primary, but there is a semi-open primary.

Answerscripps institution of oceanography; i believe this is correct plz check first good luck;

Ithink its convection.hope this plz give brainliest!