Find the Indefinite Integral of the Following Function $\int \cos 2 t d t$

Multiple Choice

Find the indefinite integral of the following function. $\int \cos 2 t d t$

A) $\cos 2 t + C$
B) $\sin 2 t + C$
C) $2 \sin 2 t$
D) $\frac { \sin 2 t } { 2 } + C$
E) $\frac { \sin 2 t } { 3 }$