BluStar Company has two service departments. Administration and Accounting, and two operating departments, Domestic and International. Administration costs are allocated on the basis of employees, and Accounting costs are allocated on the basis of number of transactions. A summary of BluStar operations follows: Required: a. Allocate the cost of the service departments to the operating departments using the direct method. (Do not round intermediate colculations. Negative omounts should be indicated by a minus sign.) b. Allocate the cost of the service departments to the operating departments using the step method. Start with Administration, (Do not cound intermediote coleulntions. Negotive omounts should be indicated by o minus sign.) b. Allocate the cost of the service departments to the operating departments using the step method. Start with Administration. (Do not round intermediate calculations. Negative amounts should be indicated by a minus sign. c. Allocate the cost of the service departments to the operating departments using the reciprocal method (Do not round intermediate calculotions. Negative omounts should be indicated by o minus sign.)