For the function of two variables defined by:  g (u,v) = u2 sin v + v2 cos u,  Which option gives ∂g/∂u?  A. 2u sin v - v2 sin u B. -u2 cos v + (1/3)v3 cos u C. (1/3)u3 sin v + v2 sin u D. u2 cos v + 2v cos u E. 2u sin v - v2 sin u + (u2 cos v + 2v cos u) (dv/du)

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