Factor Completely $$4 x ^ { 2 } + 12 x + 9$$

Multiple Choice

Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ
- $$4 x ^ { 2 } + 12 x + 9$$

A) $( 4 x + 3 ) ( x + 3 )$
B) $( 2 x - 3 ) ( 2 x - 3 )$
C) $( 4 x + 1 ) ( x - 9 )$
D) $( 2 x + 3 ) ( 2 x + 3 )$