For the Given Rational Functions F(x) and G(x), F(x) -G(x) $$f ( x ) = \frac { 2 x + 6 } { x ^ { 2 } + 4 x + 3 } , g ( x ) = \frac { x + 3 } { x ^ { 2 } + 4 x + 3 }$$

Multiple Choice

For the given rational functions f(x) and g(x) , f(x) -g(x) .
- $$f ( x ) = \frac { 2 x + 6 } { x ^ { 2 } + 4 x + 3 } , g ( x ) = \frac { x + 3 } { x ^ { 2 } + 4 x + 3 }$$

A) $\frac { 1 } { x + 1 }$
B) $\frac { 7 } { x ^ { 2 } + 4 x + 3 }$
C) $x + 3$
D) $\frac { x + 9 } { x ^ { 2 } + 4 x + 3 }$