What Is the Main Reason for Packaging Instruments Before They

What is the main reason for packaging instruments before they are placed in a sterilizer?

A) To prevent dirt or dust in the sterilizer from depositing on the instruments
B) To protect the instrument from recontamination after sterilization
C) To keep the killed microbes inside the packages so they won't contaminate the sterilizer chamber
D) To prevent rusting of the instruments