An endurance athlete who is consuming too few calories to support basic metabolic needs and fuel exercise would be characterized in which of the following states?
a. low energy availabilityb. positive energy balancec. disordered eating patternd. glycogen-poor state

The correct answer is A. Low energy availability

Explanation:

For an endurance athlete energy availability is very much important. An endurance athlete should eat at least 2000 calories even if he wants to lose weight.  

So if an endurance athlete does not consume appropriate calories then during the performance his energy availability will be low which will affect his performance. Endurance athletes require more energy reserves in the body because they have to perform physical activity for a long time.

Therefore if an endurance athlete consumes too few calories then it will lead to a low availability of energy in his body.