D) The Proviso would eventually tip the balance of slave versus free states in Congress.
Answer:
The Western Roman Empire officially ended 4 September 476 CE, when Emperor Romulus Augustulus was deposed by the Germanic King Odoacer (though some historians date the end as 480 CE with the death of Julius Nepos).22 Mar 2018
I’m pretty sure that the answer is a
The 1898 Treaty of Paris ending the war gave Cuba its independence and also ceded important Spanish possessions to the United States—notably Puerto Rico, the Philippines, and the small island of Guam. The United States was suddenly a colonial power with overseas dependencies.
https://history.state.gov/departmenthistory/short-history/superpower