How does a job analysis help with training and development?

A. Performance must be directly related to the duties and responsibilities identified through job analysis.
B. By comparing the knowledge, skills, and abilities (KSAs) that employees bring to the job with those identified by job analysis, managers can determine gaps.
C. It ensures that all of the duties that need to be done have actually been assigned and identifies areas of overlap within duties.
D. It determines the relative value of each job.