Why Do You Need to Check the Date and Sterilization

Why do you need to check the date and sterilization indicator on an instrument pack prior to opening?

A) To be sure items inside will work
B) To avoid putting the patient at risk for postoperative infection
C) To be sure the package was stored properly
D) To make sure all the proper instruments are in the pack
E) To be sure the items inside have not been exposed to moisture