Final answer:
The subject of this question is Business and it relates to different scenarios that may result in a discrepancy between the room booked and the actual room provided or rate charged.
Step-by-step explanation:
The subject of this question is Business. The question is asking about the different situations that can occur when a guest has booked a specific type of room but is being given a different one or charged a different rate. The options provided in the question describe various scenarios that may result in a discrepancy between the room booked and the actual room provided or rate charged.