What will be the stream function of flow of an incompressible fluid is defined by u = 2, v = 8x.

• A. Ψ = 2x2 + 2xy + c.
• B. Ψ = 2x + 8y2 + c.
• C. Ψ = 2y + 8x + c
• D. Ψ = - 4x2 + 2y + c.