Final answer:
The best criteria to use for a reduction in force (RIF) selection is job categories, prior disciplinary actions, seniority, and skill set.
Step-by-step explanation:
The best criteria to use for a reduction in force (RIF) selection would be D. Job categories, prior disciplinary actions, seniority, and skill set. These criteria are based on factors that are objective and relevant to job performance and the needs of the organization. By considering job categories, prior disciplinary actions, seniority, and skill set, the HR leader can make informed decisions that minimize adverse impact and ensure that the organization remains financially viable.