What would be your best prediction on the effect of not having ATP available to supply energy to this process

The best prediction is the lack of energy in the body, the feeling of tiredness or the lack of administration of healthy foods.

Explanation:

When there is no energy or energetic reserves the fat reserves are depleted, therefore the person is thin, or underweight.

Glycogen stores are also depleted, therefore muscle fatigue is the predominant one.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.