Determine Where the Function Is Increasing and Where It Is $$f ( x ) = x ^ { 2 } + 4 x + 3$$

Determine where the function is increasing and where it is decreasing.
- $$f ( x ) = x ^ { 2 } + 4 x + 3$$

A) increasing on $( - \infty , - 1 )$
decreasing on $( - 1 , \infty )$

B) increasing on $( - 1 , \infty )$
decreasing on $( - \infty , - 1 )$

C) increasing on $( - 2 , \infty )$
decreasing on $( - \infty , - 2 )$

D) increasing on $( - \infty , - 2 )$
decreasing on $( - 2 , \infty )$