Problem 9.12 The accountability units listed below have been observed at Rio de Janeiro's RioRegal hotel. For each unit, identify whether it should be a cost centre, revenue centre, profit centre or investment centre. Provide a supporting rationale for the way you classify each unit. a. A bar b. A laundry department c. A maintenance division d. A restaurant e. A shop f. A local tours booking agency occupying a single desk in the lobby g. A human resource management department h. A kitchen i. The whole hotel