Nutritiоnist: Becаuse humаns hаve evоlved very little since the develоpment of agriculture, it is clear that humans are still biologically adapted to a diet of wild foods, consisting mainly of raw fruits and vegetables, nuts and seeds, lean meat, and seafood. Straying from this diet has often resulted in chronic illness and other physical problems. Thus, the more our diet consists of wild foods, the healthier we will be.The claim that humans are still biologically adapted to a diet of wild foods plays which one of the following roles in the nutritionist's argument?