Signs and labels that warn you of the presence of potentially
infectious materials should have what?
a background of bright green and say: “warning: bloodborne
pathogens present” A
a black biohazard symbol and “BIOHAZARD” on a red background B
a biohazard symbol and ‘BIOHAZARD" printed in orange on a black
label C
a bright yellow background with “Caution: PPE required” printed in
black D