An individual suffers a blood clot in an artery that delivers blood to his leg. The leg begins to take on a blue hue, becomes colder than the rest of his body and he experiences numbness in the leg.
He is most likely experiencing:

a) anemic hypoxia
b) ischemic hypoxia
c) hypoxic hypoxia
d) histotoxic hypoxia
e) allergic hypoxia