Written $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$in employee $\_\_\_\_\_\_\_\_\_\_\_\_$are often allowed to expire after a period of time if subsequent related $\_\_\_\_\_\_\_\_\_\_\_\_$do not occur.

a$.$

Letters, HRIS, Infractions

b$.$

feedback, experience, events

c$.$

Warnings, Files, Infractions

d$.$

Notes, Files, letters