During the early part of the 20th Century, this became the best example of American Imperialist expansion

wood carving remains today the primary sculptural art form of the sub saharan continent. african art history shows the earliest wooden sculptures from the 17th c are attributed to the kuba, central zaire but the earliest surviving sub-saharan sculpture is a zoomorphic head found in 1928 in central angola.

i hope this .

because other regions has other things that egypt doesnt have.

the answer would be c

answer; i believe its (jade); good luck