Consider steady, incompressible flow with the velocity vector V = Axyi + Bx³y, in which A and B are constants and i and j are unit vectors in the x and y directions, respectively. If C and D are constants, the equation of the streamline is one of the following expressions. Note: Fill in the letter that matches your answer.
a) x + Cy - D
b) y = Cx + D
c) a + y - 0
d) y = C + D
e) Cy = D
f) None of the choices listed