The department had some unforeseen emergency services expenses in FY 2019-2020 that were expected to continue into the next fiscal year. What is the reason the total expenses decreased from FY 2019-2020 to FY 2020-2021? A. The department reduced the total cost of services and supplies to the FY 2018-2019 levels B. The department decreased the salaries of some of their employees C. The department had an increase in revenue D. The department eliminated four positions