If f(2) = u(x, y) + iv(x, y) is analytic and v(x, y) = ry, then f(z)is Select one: O a. 2z3 1 O b. z2 z Oc d. The set of complex numbers that satisfy the following equation: |1 2i 2| = 9 represents a %3D Select one: O a. circle with center 2i-1 and radius 3 O b. circle with center 1-2i and radius 3 O c. circle with center 2i-1 and radius 9 O d. circle with center 1-2i and radius 9