The best example are roads.
USA economy is a mixed-market economy. It blends elements from market economy with elements from planned economies.
Private ownership is prioritized ( free market economy) but the government <em>has control over some public services</em> such as healthcare (to an extend), physical infrastructure<em> (the road system</em>), education, national defense, the postal system and some public lands.
The idea behind public ownership of these services is that they are better performed by public than private enterprise.
The roads in the USA and their infrastructure are<em> funded by taxes</em> (especially the gas one), tolls and user fees.
1. Economic competition among industrial nations.
2. Political and military competition, including the creation of a strong naval force.
3. A belief in the racial and cultural superiority of people of Anglo-Saxon descent.
Except D. some federal troops would remain in the South to protect the civil rights of African Americans
The correct answer is D! The Portuguese American colonies were much more intellectually independent from the mother country!