Differentiate the functions with respect to x in $\;\cos(\sqrt {x} \;) $

Question

$\begin{array}{1 1} \large \frac{-sin \sqrt x}{2 \sqrt x} \\ \large \frac{cos \sqrt x}{2 \sqrt x} \\ \large \frac{-sin \sqrt x}{ \sqrt x} \\ \large \frac{cos \sqrt x}{ \sqrt x}\end{array} $