Budget Performance Report for a Cost Center The Eastern District of Adelson Inc. is organized as a cost center. The budget for the Eastern District of Adelson Inc. for the month ended December 31 is as follows: Sales salaries System administration salaries $819,840 448,152 Customer service salaries 152,600 Billing salaries 98,760 Maintenance 271,104 Depreciation of plant and equipment 92,232 Insurance and property taxes 41,280 Total $1,923,968 During December, the costs incurred in the Eastern District were as follows: Sales salaries $818,880 System administration salaries 447,720 Customer service salaries 183,120 Billing salaries 98,100 Maintenance 273,000 Depreciation of plant and equipment 92,232 Insurance and property taxes 41,400 Total $1,954,452 Required: 1. Prepare a budget performance report for the manager of the Eastern District of Adelson for the month of December. If an amount box does not require an entry, leave it blank. Adelson Inc. Budget Performance Report-Manager, Eastern District For the Month Ended December 31 Sales salaries System administration salaries Customer service salaries Billing salaries Maintenance Depreciation of plant and equipment Insurance and property taxes Total Actual Budget Over Budget Under Budget 2. For which costs might the supervisor be expected to request supplemental reports? a. Customer service salaries. b. Customer service salaries and maintenance. c. Customer service and sales salaries as well as maintenance. d. Maintenance