Why did Radical Republicans disagree with President Lincoln's plan for Reconstruction?

Lincoln would readmit Southern states to the Union on lenient terms.

Lincoln wanted the Union army to remain in occupation of the South.

Lincoln demanded that Southern states pay a large indemnity to the North.

Lincoln gave the freedmen property confiscated from former plantation owners.

The correct answer is: Lincoln would readmit Southern states to the Union on lenient terms.

Lincoln's 10% Plan was viewed as being too lenient on the traitorous Southern States. Lincoln was okay with only 10% of citizens in the traitorous Southern States pledging loyalty while the Radical Republicans wanted the South to be more firmly punished before being allowed back into the Union.