Answer: Region C, Region D
The Mound Builders were inhabitants of North America who built various styles of mounds mostly for religious and burial purposes, 5000 years ago. Most lived in the regions of the Great Lakes, the Ohio River Valley, and the Mississippi River valley,
Based on the map presented, The Mound Builders primarily lived in regions C and D where Mississippi and Ohio Valley are located.
the answer to the question you are looking for is 2,3,4
Immigration has wide-ranging impacts on society and culture, and its economic effects are no less substantial. By changing population levels and population growth, immigration augments both supply and demand in the economy. Immigrants are more likely to work (and to be working-age); they also tend to hold different occupations and educational degrees than natives.
