Answer:
D) reimbursement.
Step-by-step explanation:
The principal's duty to reimburse states that the principal must reimburse the agent all the reasonable expenses that he/she incurred in while performing his/her duties. The costs that should be reimbursed include: travel costs, meals, lodging, incidental expenses, etc.
The amount that Kelvin paid Nerdlinger is considered a reasonable expense since it will benefit Lookout Mountain Accountants, therefore the principal must reimburse the payment.