Rationale
Rationale is when the reason behind a thought or idea is explained. Matt tells his classmate that he achieved the goal of an introduction, and then goes on to explain how the goal was met. He says that the classmate used "emotive language" and "extended narrative". In this way the classmate hooks the audience into the speech.
angular I think. I would wait until some else answers because I'm not 100% sure sorry
B had gave. By the Persians for weeks in a magnificent manner and costly present to all had gave.