Given the function g$($x$)=$x$^2+3$x

$,$ evaluate g$($x$)$g$($a$)/$ x$$a

$,$ where h$0$

$.$

Select one:

A$.$

x$+$a$+3$

B$.$

x$+$a$3$

C$.$

x$$a$+3$

D$.$

x$$a$3$