Jordan has a jar of marbles with 2 red marbles, 8 blue marbles, 2 green marbles, and 1 yellow marble. What could the ratio of 1/2 represent?
A) Yellow marbles: red marbles
B) Yellow marbles : Green marbles
C) Green marbles : blue marbles
D) Green marbles: yellow marbles
E) Blue marbles: total marbles
F) Green and red marbles: blue marbles