Read the excerpt from Greta Thunberg’s speech at the United Nations Climate Action Summit.

You are failing us. But the young people are starting to understand your betrayal. The eyes of all future generations are upon you. And if you choose to fail us, I say: We will never forgive you.

We will not let you get away with this. Right here, right now is where we draw the line. The world is waking up. And change is coming, whether you like it or not.

Which rhetorical appeal is used in this excerpt?

ethos; the speaker is proving her credibility by showing her knowledge
kairos; the speaker is emphasizing the importance of the current moment in time
kairos; the speaker is using data and research to persuade the audience
ethos; the speaker is appealing to emotions by discussing change for the future