Answer: is option a
Explanation: just took the quiz
You have to include the rules with the question
I believe "You will eat lunch / at school / with friends" most clearly develops an argumentative tone because of the 'will'. Sounds like someone's trying to force the person to do that and the person may try to argue back because the will makes it sound like they have no choice in the matter.
I would say C is the correct answer
The answer would be D. If you were trying to cheer someone up after they had to kill their favorite dog you would change the subject and compliment something that the person has. A. and B. would be showing that he doesn't care and he should forget about it. C. gives an attitude that shows that life goes on and you shouldn't stay put on one part of your life. But none of those are the kind of the things that would cheer people up. D. is your best answer.