Why Should Heavy And/or Sharp Instruments Not Be Packaged in Paper

Why should heavy and/or sharp instruments not be packaged in paper bags for steam sterilization?

A) These bags are too difficult to open after sterilization.
B) The bags will get wet during sterilization, and the instruments may puncture the bag or the bag may easily tear.
C) These bags are not good microbial barriers, so they give little protection to the instruments inside after sterilization.
D) These bags cannot be adequately sealed before sterilization.