The values of a and b, for which the function f(z) = ax + iy – 3y+ ibx, where z = x+ iy is a complex variable, are A) a = 1 and b=3 %3D B) a =-1 and b= 3 || C) a = 1 and b = -3 D) a = -1 and b=-3 %3D %3D

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