$$\begin{gathered} Question) If \frac{d}{dx}f(x)=g(x) and h(x)=\sin x, then \frac{d}{dx}f(h\left(x\right)) equals \\ (1) g (\sin x\left) \\ \right(2) \cos x. g(x\left) \\ \right(3) g\text{'}(x\left) \\ \right(4) g (\sin x). \cos x \end{gathered}$$