Answer:
None of the above.
Explanation:
Let us check each of the answer choices one bye one.
Choice A:

solving for y we get:

which is not equal to our function h(x).
Choice B:
.
This gives

which is not equal to our function h(x).
Choice C:
and
.
The first expression does not contain y, thus it is not equivalent to h(x). The second equation already gives the value of y , and we see that it is not equal to h(x).
Therefore we conclude that none of the choices given are correct.