Call the teacher, of course. I feel more intimate. . . . . . . . . . . .

No matter who the instructor is, the defense is relatively easy, because the school doesn't like it, and generally it won't hang up because it is related to the diploma or something. . . . . . . . .

As long as you are familiar with your paper, you can answer almost any question, that is, the question with high score or low score,,,,,