Answer:
a preliminary or preparatory statement; an introduction.
Explanation:
the introductory part of a statute or deed, stating its purpose, aims, and justification.
The vast majority of them were people ... primarily men ... who hunted and gathered stuff to eat.
A. Companies compete with each other for business
All of the other answers can be safely eliminated since they are more characteristic of a socialist economy. Answer choice A also makes sense, considering that private companies in capitalist countries like the United States compete with each other for business all the time.
Answer: The law allowed no more immigration from European nations.
Explanation: The Immigration and Naturalization Act of 1965 abolished a prior quota system dependent on national origin and built up another movement strategy dependent on rejoining migrant families and pulling in skilled labor to the United States.
Throughout the following four decades, the policies put into impact in 1965 would enormously change the demographic makeup of the American populace, as settlers entering the United States under the new enactment came progressively from nations like Asia, Africa and Latin America, rather than Europe.