Find the Indefinite Integral of the Following Function $\int \cos 4 z d z$

Multiple Choice

Find the indefinite integral of the following function. $\int \cos 4 z d z$

A) $\cos 4 z + C$
B) $\frac { \sin 4 z } { 4 } + C$
C) $4 \sin 4 z + C$
D) $\sin 4 z + C$
E) $\frac { \sin 4 z } { 5 } + C$