A. Allow LPNs and CNAs to perform tasks beyond their scope of practice: This approach can lead to legal and ethical issues, compromising patient safety and putting staff at risk for disciplinary action. B. Establish a rewards program to recognize achievements of the staff: Implementing a rewards program acknowledges and values the hard work of the staff, boosting morale and job satisfaction, which can lead to decreased turnover rates. C. Hire additional staff so individual workloads are lessened: While this can reduce stress and burnout, it might not directly address the need for recognition and motivation, which are crucial for job satisfaction. D. Improve the working conditions of the unit by investing in ergonomic chairs: Enhancing physical work conditions is beneficial, but it does not address the core issues of motivation and recognition that significantly impact job satisfaction.