Integrate : $\int \cos (4x+5) dx$

Question

\[\begin {array} {1 1} (a)\;\sin (4x+5)+c \\ (b)\;\cos (4x+5)+c \\ (c)\;\frac{\sin (4x+5)}{4}+c \\ (d)\;\frac{\cos (4x+5)}{4}+c \end {array}\]