Each of the following Holiday Inn employees has been given certain decision-making authority. Classify each manager's department according to the type of responsibility center he or she manages: cost center [C], revenue center [R], profit center [P] or investment center [I]. Each may be used more than once, or not at all. Manager of the of one Housekeeping Department for three local Holiday Inn hotels Manager of the Holiday Inn Express corporate division Manager of the complimentary breakfast buffet at a specific Holiday Inn hotel Manager of the Holiday Inn national central reservations system office Manager of one corporate-owned Holiday Inn hotel, under corporate authority