Interchangeable parts were identical and could be exchanged for one another in manufacturing of goods
Answer: B. an import quota
Explanation:
An import quota is known to be a form of trade restriction which the government of a country imposes on a particular good from another country. The government place or put a limit on the number of imported goods which can be imported into the country over a specified period of time. Thus, the government imposes this in order to encourage local production of goods and services by making the prices of imported goods high and prices of local goods low.
Social Darwinism was most likely applied to treat immigrants from different regions differently, however, Social Darwinism does not specifically relate to immigrants but also to all members of society. In the American context, the notion was implemented to popularize the notion of "survival of the fittest" or that the strongest members of a society will succeed and the political system should support this theory.
During the beginning of the Formal Operational stage, <span>when assimilation dominates, an adolescent's thoughts are full of idealism and possibilities.
Formal operational stage happened between the age of 12 and last into the adulthood. The thought of idealism and possibilities are created due to human's new capabilities to think about abstract concepts and logical thought</span>