How did the war change under President Nixon's administration? underline his new policy

Vietnamization was the policy to end the U.S. involvement in the Vietnam war.

Explanation:

War changed because the new policy made it where the U.S. troops involvement was going to end, and they were no longer going to partake in the Vietnam War

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.

the answer is b: an economic crisis throughout the country.