【单选题】

Guest: ______.Clerk: Certainly. Do you have a reservationGuest: Yes. The name is Morales. Mr. and Mrs. Morales.Clerk: Here we are. For five nights. Could you fill in the registration card, please And I'll need your credit card.
A．I'd like rest here, please

B．I'd like to rent a room, please
C．I'd like to check in, please
D．I'd like to stay in, please