The answer would be 'your' because your is possessing the couch, but ''you're'' is a contraction which stands for "you are," and doesn't make sense.
The correct answer is D, where demos in Greek means people, and democracy is the rule of people, where people get to decide.
I believe the answer is D.
1.D
2.B (I am 90% sure)
Hope you get an A+ on this :)