GMAT Critical Reasoning (CR) | Many athletes inhale pure oxygen after exercise in an attempt to incre

Many athletes inhale pure oxygen after exercise in an attempt to increase muscular re-absorption of oxygen. Measured continuously after exercise, however, the blood lactate levels of athletes who inhale pure oxygen are practically identical, on average, to those of athletes who breathe normal air. The lower the blood lactate level is, the higher the muscular re-absorption of oxygen is.

If the statements above are all true, they most strongly support which of the following conclusions?

A) Athletes’
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