The Answer Is B because he is not trying to relate to the audience which would be Pathos and he is not using logic or information to convince the audience which is Logos Therefore it is Ethos , Ethos is using ethical appeal.
I know that you said 'opening line', but I found all of that information kind of hard to fit into a handful of sentences. As a result, what I've written might really differ from your perceptions of the story. I hope that it's not too different and that it works for you. Good luck.
Your answer is going to be B I'm really good at English