If iodine was omitted in the Gram-staining procedure, what color would you expect Gram-positive bacteria and Gram-negative bacteria to stain?
a) Gram-positive: purple, Gram-negative: purple
b) Gram-positive: purple, Gram-negative: pink
c) Gram-positive: pink, Gram-negative: purple
d) Gram-positive: pink, Gram-negative: pink
