Answer:
i THINK it is D, although i can be wrong.
Explanation:
Answer:
Containment is the American policy of resisting further expansion of communism around the world. The Truman Doctrine called for the U.S. to take a leadership role in the world and declared that the U.S. would support nations threatened by communism. ... The U.S. would then support the program with financial aid.
The answer is a because you said it was
The policy of promoting industry in the U.S. by adoption of a high protective tariff and of developing internal improvements by the federal government.