Question

which one of the three mississippi indian tribes that were around when the europeans first appeared is still here today and is the biggest tribe in mississippi? choctaw chickasaw yazoo natchez

Explanation:

The question is about Mississippi Indian tribes. The Choctaw tribe was one of the major Mississippi tribes historically and is still the largest tribe in Mississippi today. Yazoo is a county/region, not a tribe. Chickasaw and Natchez, while historical tribes, the Choctaw are the largest now.

Answer:

Choctaw