The graph of a quadratic function f is such that its two zeros are on the opposite sides of the y-axis and are two units apart. If f(x) = (x + a)(x + b) represent the factored form of the function, which statement could be true? A. a> 0,b < 0 and a -b = 2 B. a> 0,b < 0 and b- a = 2 C. a> 0, b > 0 and a - b = 2 D. a <0,b < 0 and b- a = 2

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