44 Roger: What time do we need to _________of the hotel tomorrow?

Alice: We should do it before 11 a.m. to avoid extra charges.
(A)check in
(B)check on
(C)check off
(D)check out

羅傑：我們明天幾點需要辦理飯店_______？愛麗絲：我們應該在上午11點前辦理，以免產生額外費用。