What Did Abraham Lincoln Initially Think Was the Appropriate Long-Term

What did Abraham Lincoln initially think was the appropriate long-term solution to slavery?

A) Lincoln thought that slaves should be freed immediately, without compensation.
B) Lincoln thought no slaves should be freed, since that would damage property rights.
C) Lincoln wanted to compensate masters for their slaves and then send the slaves out of the United States.
D) Lincoln believed that slaves should be moved to the far west, so that they could be used in building railroads.