Question

question 23 of 45
what is one reason for the united states to develop alternative - energy sources?
a. unsteady politics in foreign countries
b. lack of progress in research on car engines
c. the dangers of nuclear power plants
d. complex trade laws between the states

Explanation:

Unsteady politics in foreign countries can disrupt the supply of traditional energy sources (like oil from certain regions). Developing alternative - energy sources helps the US reduce its dependence on these potentially unstable foreign energy supplies.
Lack of progress in car - engine research is not a direct reason for developing alternative energy. The dangers of nuclear power plants (which is a form of energy itself, though not a traditional fossil - fuel - based one) is more about the risks associated with a specific energy type rather than a reason to develop new alternative energy sources. Complex trade laws between states are internal and not related to the need for alternative energy sources.

Answer:

A. Unsteady politics in foreign countries