The number one thing that helped spread the belief was the population growth. America need more room for more immigrants.
Answer:
The answer is B.
Explanation:
Progressive Era reformers sought to harness the power of the federal government to eliminate unethical and unfair business practices, reduce corruption, and counteract the negative social effects of industrialization.
They were upset because the law forbade them from settling in the Ohio River Valley where there was fertile soil for farming, and the Native Americans weren't using it, plus many colonists had already bought land west of the Appalachians and now weren't allowed to move. Many colonists did not respect the Native Americans and did not want to preserve their land. The colonists just ignored the law and moved across the Appalachians.
Do you have options? If not I can list a few:
Illegal drugs.
Illegal Weapons.
Illegal stuff.
Unregistered people.
Terrorists.
He supported French colonialism in Vietnam to stop communism.