Answer:
The tone is inappropriate for the audience because it is too formal and lacks passion. The correct answer is A.
Step-by-step explanation:
The context in which those words are said is an informal context, it is a speech addressing a group of athletes in the locker room before an important competition and the words the speaker uses are too formal. The speaker should use informal words that everybody can understand and relate to in the locker room, and the speech has to be more passionate; those athletes are about to go out and do their best to win the competition, they are excited, they need a motivational speech, not a quiet, relaxed one.