Agencies sometimes use performance improvement plans when addressing an employee$$s job performance issues. Which statement best describes a performance improvement plan? A$/$an

a$.$ oral contract between a manager and employee in which the employee acknowledges the performance problems and promises to correct it$.$

b$.$ tool to monitor and measure the employee and manager$$s effort to improve the employee$$s job performance.

c$.$ written agreement between the manager and employee that documents examples of substandard performance that can be used to take disciplinary action at a later date.

d$.$ system of disciplinary actions that an employer may take when an employee$$s job performance is substandard.