Find a and D For $f ( x ) = a \cos x + d$

Multiple Choice

Find a and d for $f ( x ) = a \cos x + d$ such that the graph of f matches the figure.

A) $a = 2 ; d = 3$
B) $a = 5 ; d = 2$
C) $a = 3 ; d = 5$
D) $a = 3 ; d = 2$
E) $a = 5 ; d = 5$