In Which of the Following Examples Would a Front Desk

In which of the following examples would a front desk clerk post a "paidout."

A) A guest who registered three days ago does not have enough credit left on his "cash only" folio for tonight's room charge. You ask him to pay an additional $61.25 towards his room.
B) A "cash only" guest who needs to use his in-room telephone is prepared to leave a $20 deposit
C) A "cash only" guest who left a $20 telephone deposit is now checking out. She only spent $8.00 on the telephone and is asking the excess $12.00 be returned to her now that she is checking out
D) A guest who is standing in front of you is prepared to leave an $80 advanced deposit (for his uncle arriving next week) , but doesn't have change for a one hundred-dollar bill
E) All the above are examples of when to use a paidout