For the following composite function, find an inner function u = g(x) and an outer function y = f (u) such that y = f(g(x)). Then calculate dy dx y = cos *x Select the correct choice below and fill in the answer box to complete your choice. dy d OA. (14 ) . d dx du (cos x) = dy d O B. dx = du (Cos u) . dx - (x 4 ) = dy O C. dx du (4) . (cos *x) = dy O D. dx = du (cos *u) . d dy ( x ) =