ACMT Toxicology Visual Pearls: The Blood Sample Doesn’t Look Right

Which administered antidote causes this appearance in a blood sample?
a) Hydroxocobalamin
b) Intravenous Lipid Emulsion (ILE)
c) Methylene blue
d) N-acetylcysteine

Which administered antidote causes this appearance in a blood sample?
a) Hydroxocobalamin
b) Intravenous Lipid Emulsion (ILE)
c) Methylene blue
d) N-acetylcysteine