When American Presidents decide to nominate Supreme Court Justices, what type of power are they using?

supreme power

Explanation:

this is given by the American people who normally vote

The answer is A: trade for necessary goods.

Trade agreements are helpful because they allow countries to trade for necessary goods.

Explanation: Trade agreements refer to agreement between two or more countries on the terms of the acceptable exchange of goods and services between the countries. Trade agreement is also any contractual obligations between nations pertaining to their trade relationships. It can bilateral or multilateral that is between two or more states.  Trade agreements determine duties and tariffs that countries impose on  import and export goods.