Question

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

Explanation:

After the Civil War, the 15th Amendment granted Black men the right to vote. Southern African Americans overwhelmingly supported the Republican Party, which had championed their emancipation and voting rights, directly strengthening the party in the South. The other options are incorrect: most white Southerners opposed the Republican Party, the party did require loyalty oaths for former Confederates, and readmission of states was tied to Reconstruction requirements that did not directly build party strength.

Answer:

C. Millions of southern African American men became voters.