Final answer:
President Andrew Johnson opposed the enforcement of civil rights for freed slaves, aligning less with the Radical Republicans' push for a thorough reconstruction and rights for freedmen, ultimately leading to conflict and his impeachment.The correct option is 3.
Step-by-step explanation:
One way that President Andrew Johnson's reconstruction plan differed from that of the Radical Republicans in Congress was that Johnson opposed the enforcement of civil rights for freed slaves. Johnson's approach to Reconstruction was much more lenient than the Radical Republicans wanted. He sought a swift reintegration of Southern states into the Union without drastically changing the Southern social structure or ensuring civil rights and protections for freedmen. In contrast, the Radical Republicans pushed for a more thorough reconstruction that included significant changes to Southern society and the assurance of rights for the formerly enslaved. This disagreement led to significant conflicts between Johnson and Congress, eventually resulting in Johnson's impeachment, although he remained in office until the end of his term.