Which of the Following Statements Concerning Revpar Is True

Which of the following statements concerning Revpar is true?

A) It is not as complete a measure of hotel performance as the widely-used average room rate.
B) It represents a useful gauge of a hotel's financial stability.
C) Revpar is calculated by dividing daily room letting revenue by the number of rooms sold.
D) If it is increasing in a hotel, the hotel's ROI must also be increasing.
E) Considered individually, it represents a more complete performance measure than average room rate or percentage room occupancy.