The best choice would be C. She is arrogant. Her tone in which she speaks sounds snobby in a way. We can’t assume that she is dishonest she possibly is a genius. I don’t think she is nervous for she speaks very boldly. Her statements never showed in any way how genius she was. So yes C is the best choice.
The model headstone Atkinson has just finished carving bears Withencroft's full name, his date of birth, and that very day as the date of his death.
B. Person "A" said they were going to have a test.
b or c I'm not completely sure