The word "theory" is usually applied to scientific conclusions that have been based on observations and the results of experiments, and have neither been disproved nor confirmed by these experiments. What Mia possesses is more accurately an opinion or supposition.
You have to think of a person, but some qualities would be....
Heroic, smart, kind, generous, amazing, different or unique, strong, brave, powerful, resourceful, to proud to ask for help, good influence, and risky. I hope this helps you out a little bit. Also some deeds could be....
attending to the poor, being kid to everybody, a person who always tries to do the right thing,etc.
Good luck!
The answer would be B.
The way the girl is smiling, and giving a thumbs up, it's an encouragement to vote.