Begin the American Revolution, or take action against Britain.
Answer:
D
Explanation:
<u>The majority of the other brainly answers say d, and I think it’s correct.</u>
Territorial expansion between the years 1800 and 1850 greatly disrupted national unity in many ways because it forced people to decide whether the new states would be slave or free--dividing the nation in half.
I think its the Indian trade center not 100% sure tho