Find $\frac{d}{d x} \int_{0}^{x}\left(\cos \left(t^{4}\right)+\sin \left(t^{4}\right)\right) d t$
A) $\cos \left(x^{4}\right)+\sin \left(x^{4}\right)$

Multiple Choice

Find $\frac{d}{d x} \int_{0}^{x}\left(\cos \left(t^{4}\right) +\sin \left(t^{4}\right) \right) d t$ .

A) $\cos \left(x^{4}\right) +\sin \left(x^{4}\right)$
B) $\sin \left(x^{4}\right) -\cos \left(x^{4}\right)$
C) $\sin \left(4 x^{3}\right) -\cos \left(4 x^{3}\right)$
D) $\frac{x^{5}}{5}\left(\sin \left(x^{4}\right) -\cos \left(x^{4}\right) \right)$