Find $g \circ f$ $f ( x ) = x + 2$

Find $g \circ f$ .
$f ( x ) = x + 2$
$g ( x ) = x ^ { 2 }$

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) $\quad ( g \circ f ) ( x ) = x ^ { 2 } + 4 x + 4$

Correct Answer:

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