For questions like these, you would plug the numbers in and then solve.
Since the coordinates are the same, it doesn't matter which coordinates go to where.
If we plug the numbers in on question A, we get -6 < -7 which isn't right.
On question B, we get 6 < 7 which also is wrong.
But on question C, We plug the numbers in, 0 - 7 < 2(0) - 6
This simplifies to -7 < -6 which is true!
C. is your final answer.
