Answer: A) Determined.
Explanation: In the given sentence from the high school step team, we can see that a girl says thanks to Karla, and then says to Jade that she will be going for after school help in math, even when the girl is grateful ("I really appreciate your concern but I've got to say no thanks for now, Karla") the main tone of the sentence is determined, because she seems really secure and decided to go for after school help in math.
