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Which of the sets of statements below will add 1 to x if x is positive and subtract 1 from x if x is negative but leave x alone if x is 0?if (x > 0) x++;else x--;if (x == 0) x = 0;else x++;x--;if (x > 0) x++;if (x < 0) x--;else x = 0;if (x > 0) x++;else if (x < 0) x--;x++;x--;
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