Find $g \circ f$ $\begin{array} { l l } f ( x ) = x + 2 & g ( x ) = x ^ { 2 } \\ \end{array}$

Multiple Choice

Find $g \circ f$ .
$\begin{array} { l l } f ( x ) = x + 2 & g ( x ) = x ^ { 2 } \\ \end{array}$

A) $( g \circ f ) ( x ) = x ^ { 2 } + 2$
B) $(g \circ f ) ( x ) = x ^ { 2 } - 4$
C) $( g \circ f ) ( x ) = x ^ { 2 } + 4$
D) $( g \circ f ) ( x ) = x ^ { 2 } + 2 x + 4$
E) $( g \circ f ) ( x ) = x ^ { 2 } + 4 x + 4$