Find the Derivative of the Function $y=\ln \left(4+x^{2}\right)$ A) $\frac{2 x}{x^{2}+4}$ B) $\frac{2}{x}$

Multiple Choice

Find the derivative of the function.
- $y=\ln \left(4+x^{2}\right)$

A) $\frac{2 x}{x^{2}+4}$
B) $\frac{2}{x}$
C) $\frac{1}{2 x+4}$
D) $\frac{8}{x}$