Write the relation as a set of ordered pairs?
a. ordered pairs: {(0, 2), (2, 6), (4, 10)}
b. ordered pairs: {(2, 0), (6,2), (10,4)}
C. ordered pairs: {(0, 2), (6,2), (10,4)}
d. ordered pairs: {(2,0), (2, 6), (4, 10)}