What was the Ten Percent Plan? O A. Southern states could set up new governments if 10 percent of their voters had remained loyal. O B. Southern states could set up new governments if 10 percent of their slaves were freed. O C. Southern states could set up new governments if ten percent of their voters made certain promises. D. Southern states could set up new governments if 10 percent of their voters were freed slaves.​

Explanation:

The 10 Percent Plan was introduced by President Lincoln after the Civil War during the period of Reconstruction in the South. It outlined the rules for former Confederate states to rejoin the Union.

The main regulation was 10% of the voters needed to take an oath of loyalty to the Union, then the state could create new state governments with new state constitution including emancipation and the abolishment of slavery.

So, the voters didn't have to be previously loyal (A), free only 10% of the slaves (B), or have 10% freedmen voters (D). It involved pledges, or making promises, so C is correct.

the answer here would be

c. free trade can lead to low pay for workers in poorer countries.