The deliberate annihilation of an entire people or race

Which of following most accurately describes china today?

This photo shows an early mesoamerican structure, specifically from the zapotec culture. what was this structure most likely used for? a.creating terraces for farm fieldsb.practicing religious ceremoniesc.playing a ball game with stone hoopsd.protecting a city from invading armies

Were african-americans allowed to serve in the military in wwi? explain