Sterile Surgical Drapes Are Used to Create the Sterile Field,protecting

Sterile surgical drapes are used to create the sterile field,protecting the patient from endogenous and exogenous sources of contamination.Of the characteristics listed,which are essential to maintaining the sterile field?

A) Provide barrier protection from microorganisms,fluid,and particulate matter
B) Limit environmental impact and flammability
C) Ensure a fiscally responsible cost/benefit ratio and reduce glare
D) All of the options are important.