Hello there! Your answer would be A.
In direct variations, the x values vary directly with the y values. This exists in multiplication and division, but not addition and subtraction because x will directly vary with y on all possible values.
So, out of the options given, the only correct choice would be A, since all the others involve using addition to get from x to y, or vice versa.
I hope this helps and have a great rest of your day!
