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If x is an odd negative integer and y is an even integer, which of the following statements must be true?
I. (3x - 2y) is odd
II. xy2 is an even negative integer
III. (y2−x) is an odd negative integer
I. (3x - 2y) is odd
II. xy2 is an even negative integer
III. (y2−x) is an odd negative integer
A.I only
B.II only
C.I and II
D.I and III
E.II and III
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