To fend off communists and is an example of the Containment policy.
To help provide income for their families
Answer: Historian Charles C. Mann compiled evidence of a far more complex and populous pre-Columbian society.
Explanation: "From southern Maine down to about the Carolinas, you would have seen pretty much the entire coastline lined with farms, cleared land, interior for many miles and densely populated villages generally rounded with wooden walls. And then in the Southeast, you would have seen these priestly chiefdoms, which were centered on these large mounds, thousands and thousands of them, which still exist. And then as you went further down, you would have come across what is often called the Aztec empire and maybe better known as the Triple Alliance 'cause it was a group of three people, which was a very aggressive, expansionistic empire that had one of the world's largest cities as its capital, Tenutchtitlan, which is now Mexico City."
Answer: Aging may reduce migration as older people tend to migrate less than young. Aging may lead to lower migration of workers of all ages as a result of lower labor demand for migrants.
Aging is also present in migrant-sending countries, where both facts exacerbate the negative effects
Explanation:
I believe the answer is B. Hope it helps