Pls help, ill give brainlist if u answer this :) help me

Which statement best describes evidence of a mulitcultural mix in east africa? a. because of what he learned during his pilgrimage to mecca, mansa musa was able to build a center of islamic scholarship. b. the traders of ghana brought back with them slaves from the mediterranean who taught the ghana rulers about christianity. c. clans were made up of lineages that were descendants of multiple ancestors from different regions of africa. d. swahili became a language made up of words spoken by traders along the coast of the indian ocean.

The government has the right to restrict the number of people who visit the white house. this is an example of a government exercising its

Acharacterized by intimate, long-term, face-to-face association and cooperation. primary group community clique secondary group