The reason that fails to support the claim in a meaningful way is:
"Many teenagers have reported a tendency to skip breakfast, which some nutritionists consider the most important meal of the day, altogether."
While this statement may highlight a behavior (skipping breakfast) that is associated with teenagers, it does not address the specific issue of why high school classes should start later in the morning compared to elementary or middle school classes. The other reasons provided directly relate to the need for adequate sleep, attention, and overall readiness for learning, which are more relevant to the claim.