1. why did the republican party became strong in the south?
millions of southern african american men became voters.
the party did not require a loyalty oath in order to vote,
o many white southerners attended the state constitutional conventions.
all former confederate states had met the requirements to rejoin the union.

The Republican party became strong in the South because millions of southern African American men became voters.

Option A

Explanation:

Republican party was one of the two most famous parties in the United States of America and most of the people in the southern part of the states became republicans.

The republican party were in favor of the people of the black community who were African american and wanted them to get equal rights in the society. They wanted to end slavery in the society and when the African american got the right to vote, they voted for the republican party.

It allowed easier trade routes instead of ships having to cross the entire Southern hemisphere. But it also showed off the wealth and architectural skill of the United States.