QUESTION 3 Given an interpretation W = {x, y). For which of the following formulas is W a model? O A. ((-x) = (y) = (2x) . -x+ (((x) + (y))) O C(-((-x) +(y))) A(-x) OD.(((-x) (y))) + (2x) QUESTION 4 Which of the following interpretations is a model for ((a) +b) +(c)? O A. W = {b,c} O B. W = {a, c} O C. W = {a,b,c} O D. W = {} QUESTION 5 Which would be the best way to describe the following formula in English? Vx3y: (loves(x,y) loves(y,x)) O A. There are at least two people that love each other. O B. For every person there is someone that they love and who loves them back. O C. There is at least one person that loves everyone. O D. Every person loves every other person