Answer:
A. Studies show that high-sugar snacks can cause fatigue and increase hunger.
Step-by-step explanation:
The sentence directly address the health implications of consuming high-sugar snacks, indicating negative effects like fatigue and increased hunger, supporting the argument that avoiding such snacks would be beneficial for teenagers' health.
Sentence B doesn't address the claim of avoiding sodas and snacks, but suggesting an alternative to sugary snacks at a lower price. Sentence C provide information, although doesn't offer any evidence/reasoning, and also doesn't directly address/support the claim regarding health effects of these snacks and sodas. Sentence D highlights that some teenagers may have health conditions that prevent them from consuming sugary snacks, but doesn't really provide a general argument for why all teenagers should avoid these snacks for better health. It addresses specific cases rather than the overall health implications of sugar consumption.