$16.$ Which one of the following sentences contains NO errors?

A$.$ Employees are required to submit all reciepts to the accounting office at the end of each trip.

B$.$ Please use the travel expense claim form to document your expenses, because were not able to process your reimbursement without this form.

C$.$ All travel expense claims must be turn in to the accounting office no later than two weeks after the trip

D$.$ The turnaround for the accounting office to process reimbursements is four to six weeks after obtaining the necessary documents.