A patient who has been isolated for Clostridium difficile (C. difficile) asks you to explain about what he should know about this organism. What is the most appropriate information to include in patient teaching? （ ）

A、Theorganismisusuallytransmittedthroughthefecal-oralroute.
B、Handsshouldalwaysbecleanedwithsoapandwaterversusalcohol-basedhandsanitizer.
C、Everyonecomingintotheroommustbewearingagownandgloves.
D、Whilethepatientisincontactprecautions,hecannotleavetheroom.