A. and C. are the correct/right answers ^w^
if you're using plato the answer would be the NAACP
(A) the building of large mounds for burial
grounds
(B) potlatch ceremonies to display one’s
wealth
(C) sheepherding
(D) the erection of long houses
(E) the building of cliff dwellings
b. Soviet Union
c. China
d. Great Britain