The correct answer is A. Studies show that snacks high in sugar can cause fatigue and increase hunger.
Step-by-step explanation:
A counterclaim is a statement that is used to rebut another as claims, counterclaims express a position and should be supported with evidence this includes examples, statistics or references to research or scientific studies that shows why what the author is claiming is valid. In this case, the author is trying to show to eat healthier it is necessary to avoid sodas and snacks that contain sugar, which means the evidence should show why eating sodas or snacks made with sugar affect health negatively, because of this "Studies show that snacks high in sugar can cause fatigue and increase hunger.", because it proves eating snacks affects health negatively because it causes fatigue and increases hunger which is not a normal or healthy state, also there is a reference to health studies that shows the evidence is reliable and other evidence do not prove the counterclaim.