Which should be the first step of check-out servic

Which should be the first step of check-out servic
E.
A.Presenting the bill and total to the guest.
B.Printing the bill for the guest.
C.Asking if the guest has recently signed any new bills.
D.Answering any questions concerning the bill that the guest may have.
正确答案：Asking if the guest has recently signed any new bills.