Task: Question Answering
Input (English): Question: If y>x>0, which of the following must be true:
I. y^2>x^2
II. y^3 > x^3
III. |y|>x

 Option A: I only

 Option B: II only

 Option C: I, II and III

 Option D: II and III

 Option E: III only
Output (English): Option C