Which Statement About CO Binding to Hemoglobin Is NOT Correct

Multiple Choice

Which statement about CO binding to hemoglobin is NOT correct?

A) CO binds to hemoglobin better than O₂ does.
B) CO binding to hemoglobin is reversible.
C) The binding of one CO molecule to hemoglobin makes the binding of other CO molecules more efficient.
D) A histidine residue in hemoglobin reduces the affinity of CO binding to heme.
E) The binding of one CO molecule to hemoglobin makes the binding of O₂ molecules more efficient.