Answer:
C.They planted cotton and practiced slavery.
Explanation:
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Answer:

Explanation:
Cambodia is considered a mainland in Southeast Asia.
China and Japan are in East Asia.
Answer:
The attack on the World Trade Center on 9/11 resulted in the largest loss of life by a foreign attack on American soil. 18 people were rescued alive from the rubble of the World Trade Center site. Cases of post-traumatic stress are common among 9/11 survivors and rescue workers.
Explanation:
The progressive reforms were prompted by the progressives who included men and women who fought against ruthless big business and corporations, trusts and political machines and called for reforms to combat the evils of child labor, poor working conditions, health and safety, squalid living conditions, the rights of women and minority groups, unfair business practices and consumer protection.