Carbon Monoxide Binds to Hemoglobin 140 Times More Strongly Than

Carbon monoxide binds to hemoglobin 140 times more strongly than oxygen does. What does this tell you about the equilibrium constants for the two reactions of hemoglobin with carbon monoxide and oxygen?

A) Oxygen and carbon monoxide react with hemoglobin in different fashions.
B) The equilibrium constant for the binding of CO is greater.
C) The equilibrium constant for the binding of oxygen is greater.
D) The concentration of carbon monoxide at equilibrium is twice that of oxygen.
E) Oxygen and carbon monoxide have the same formula mass.