Which Statement About Gram-Positive Bacteria Is True

Multiple Choice

Which statement about Gram-positive bacteria is true?

A) They stain blue to purple and have walls with a relatively high concentration of peptidoglycan.
B) They stain pink to red and have relatively little peptidoglycan in their cell walls.
C) They weigh more than a gram.
D) They were discovered before Gram-negative bacteria.
E) They have no peptidoglycan in their cell walls.