A Nurse Manager of a Medical Unit and a Nurse

A nurse manager of a medical unit and a nurse manager of a critical care unit are discussing their personnel budgets. The medical unit budget is higher than the critical care unit budget. What are plausible reasons for this difference?

A) There is a higher turnover rate of nursing staff on the medical unit.
B) Costs were incurred during a recent remodeling of the medical unit.
C) The client acuity on the critical care unit is higher.
D) The critical care manager is a better manager than the medical unit manager.
E) More staff on the medical unit received premium pay this year.