Task: Question Answering
Input (English): Question: Which of the following describes all values of x for which 2–x^2 >= 0?

 Option A:  x >= 1

 Option B:  x <= –1

 Option C:  0 <= x <= 2

 Option D:  x <= –1 or x >= 1

 Option E:  –2 <= x <= 2
Output (English): Option E