Task: Question Answering
Input (English): Question: If x ≠ 0 and (y^2 − xy)/x=y-x, which of the following expressions is equal to its opposite?

 Option A: x^2

 Option B: x^2 – y^2

 Option C: y^2

 Option D: (y + x

 Option E: (x – y
Output (English): Option E