Which of the following lists of ordered pairs is a function? O A. (3,-2), (2, -1), (3, 4), (4,7)
O B. (1,7), (2,5), (3, 6), (4,1)
O c. (0,4), (1,2), (1,0), (2,3)
O D. (2,5),(3,8),(4, 11),(4, 12)

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?