Read the passage below and answer the question that follows.
Will's mom offered him the incentive of two movie tickets if he finished cleaning his room by noon.
The word incentive that is underlined in the sentence above is best defined as
A a motivation for choosing one alternative over another
B something that happens as the result of a choice
C. something given up as the result of a choice
D. the best alternative that has been given up

Please help! And give an explanation I need to understand also! Thank you!!