Select the Correct Statement About Oxygen Transport in Blood

Select the correct statement about oxygen transport in blood.

A) A 50% oxygen saturation level of blood returning to the lungs might indicate an activity level higher than normal.
B) During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O₂.
C) During conditions of acidosis, hemoglobin is able to carry oxygen more efficiently.
D) Increased BPG levels in the red blood cells enhance oxygen- carrying capacity.

Correct Answer:

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