Find the Partial Derivative $z=f(x, y)=5 x^{2}-11 x y+2 y^{3}$ Find

Multiple Choice

Find the partial derivative.
-Let $z=f(x, y) =5 x^{2}-11 x y+2 y^{3}$ . Find $\frac{\partial z}{\partial x}$ .

A) $-11 x+6 y^{2}$
B) $-11 x-6 y$
C) $10 x+11 y^{2}$
D) $10 x-11 y$