Hannah is employed by Munchin Financial. As an employee benefit, the employer will pay for employees to earn their Masters in Financial Accounting provided that they agree to work exclusively for Munchin Financial for five years following graduation. If an employee does not work the additional five years there, then that employee must repay Munchin Financial the total cost of the tuition. This provision of the contract is called 

Restitution 

Clawback 

Buyback 

Reimbursement