As the Civil War drew to a conclusion, the chief concern of Republicans in Congress was that

Athey were being pressured to enact legislation granting social equality to African-Americans
Bthe economy would have a difficult time adjusting because of the loss of slave labor on Southern plantations
Cthe return of Confederate states to the Union might hamper their plans for continued industrial development
Dthe Wade-Davis Bill sought to grant blanket pardons to ex-Confederates

Verified Answer :

The correct answer for the question that is being presented above is this one: "B. the economy would have a difficult time adjusting because of the loss of slave labor on Southern plantations." As the Civil War drew to a conclusion, the chief concern of Republicans in Congress was that the economy would have a difficult time adjusting because of the loss of slave labor on Southern plantations