Final answer:
The key elements of Lincoln's incentive system were restoration and gradual compensated emancipation, with a focus on voluntary acceptance and allowing the states to determine the pace of emancipation. The Ten Percent Plan made it easier for states to be readmitted to the Union.
Step-by-step explanation:
The key elements of Lincoln's incentive system were based on the principles of restoration and gradual compensated emancipation. Lincoln believed that bringing the Confederate states back into the Union while respecting their authority to determine the civil and political rights of their residents would lead to a quicker end to the war. He saw voluntary acceptance of emancipation and the opportunity for the states to set the pace at which it happened as important factors in achieving this goal. Additionally, Lincoln's Ten Percent Plan required only ten percent of voters in a state to take a loyalty oath, making it easier for the states to be readmitted to the Union.