Analena's refusal to purchase fattening snacks at the grocery store is both a cause and a consequence of her superior dietary self-control. this best illustrates the importance of:

The correct answer is: recirpocal determinism.

Explanation:

Developing healthy, self-restraining habits in a conscious way as a counterweight to unhealthy habits. By managing to gain consciousness about one's health in dietary means, one gains the capacity to turn a need into a healthy habit which produces a consequence that is more desired than the unhealthy habit. Analena has developed a chain-system in which the cause not to do something has a consequence she desires because it enables her not to do that same thing. Meaning, Analena refuses to buy fattening snacks because that will let her stay healthy and fit, and by staying healthy and fit she will not have the urge to consume fattening snacks.