Determine the Domain Of $f \circ g$ If $f ( x ) = x ^ { 2 } - 17$

Multiple Choice

Determine the domain of $f \circ g$ if $f ( x ) = x ^ { 2 } - 17$ and $g ( x ) = \sqrt { x }.$

A) $( - \infty , \infty )$
B) $( - \infty , - 17 ] \cup [ 17 , \infty )$
C) $( - \infty , - \sqrt { 17 } ] \cup [ \sqrt { 17 } , \infty )$
D) $[ \sqrt { 17 } , \infty )$
E) $[ 0 , \infty )$