A researcher has introduced molecules of human myoglobin and hemoglobin into a solution containing oxygen.
Which of the statements is true of human hemoglobin and myoglobin?

a) When introduced into an oxygen-containing solution, a single molecule of human myoglobin will bind to more oxygen molecules than a single human hemoglobin molecule will.
b) When introduced into an oxygen-containing solution, human myoglobin and hemoglobin will behave similarly and will bind to the same number of oxygen molecules (with the same affinity).
c) Because myoglobin does not interact with oxygen molecules, only human hemoglobin will bind to oxygen molecules in this solution.
d) When introduced into an oxygen-containing solution, human hemoglobin will bind oxygen molecules more tightly than human myoglobin.
e) Compared to human hemoglobin, human myoglobin will likely bind to oxygen molecules more quickly when introduced into the oxygen-containing solution.