Task: Question Answering
Input (English): Question: If x is an odd negative integer and y is an even integer, which of the following statements must be true?
I. (3x - 4y) is odd
II. xy^2 is an even negative integer
III. (y^2 - x) is an odd negative integer

 Option A: (3X-4Y

 Option B: II only

 Option C: I and II

 Option D: I and III

 Option E: II and III
Output (English): Option A