In Reviewing the Job Description of a Nurse Manager,the Staff

In reviewing the job description of a nurse manager,the staff members become aware that a nurse manager's role is complex.Which of the following duties are required of a nurse manager?

A) Responsibility for nursing benchmarks
B) No responsibility for knowledge of staffing benchmarks
C) Responsibility for planning staffing of unlicensed assistive personnel only
D) Preparing a unit budget
E) Changing staffing plans on the basis of service needs