This is a question of a listening practice book, and I wonder if he started talking first implies an angelic act or an devilish one. It's quite vague. The answer is "A"ngelic, so what do you think? This sentence may mean he sacrifices himself on behalf of the class, but it looks quite weird.
Q.Choose "D" for devil and "A" for Angel to match Brain when you see Brian act like this.
1. Sometimes the teacher gets angry with us for talking during class. Then Brian says that he started talking first. - A
2. When the teacher asks me a question, I sometimes don't know the answer. Then Brian gives me the wrong answer on purpose, and I give the wrong answer to the teacher. Then all the students laugh at me. - D
It is unclear.