Question

which statement primarily appeals to pathos, or emotion, to support the position that high schools should start later in the morning?
it is to be expected that high school students should be tired at eight in the
morning: they have exhausting extracurricular activities lasting late into the
evening and hours upon hours of homework to complete each night.
an early start time can have a significant negative effect on teens health,
studies have shown, making students more likely to perform poorly
academically.
some of my first - period students appear to be exhausted in the mornings,
which i know, in my experience as a high school teacher, impairs their ability
to learn.

Explanation:

Pathos appeals to emotions. The statement "Some of my first - period students appear to be exhausted in the mornings, which I know, in my experience as a high school teacher, impairs their ability to learn" uses the personal experience of a teacher (emotional connection to students' struggles) to support the position. The other statements use academic studies (ethos - credibility through research) or describe a situation (more of a factual or logical setup rather than an emotional appeal).

Answer:

Some of my first - period students appear to be exhausted in the mornings, which I know, in my experience as a high school teacher, impairs their ability to learn.