The growing population in East Africa encouraged early human migration because an increasing number of people . A.
used up the resources
B.
created widespread disease
C.
engaged in constant warfare
D.
improved farming techniques

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;

100% tortilla. it is the only possible answer