Describe How to Transform the Graph of F into the Graph

Multiple Choice

Describe how to transform the graph of f into the graph of g.
- $f ( x ) = \sqrt { x }$ and $g ( x ) = - \sqrt { x + 4 }$

A) Shift the graph of $f$ right 4 units and then reflect across the $x$ -axis.
B) Shift the graph of $f$ left 4 units and then reflect across the $x$ -axis.
C) Shift the graph of $f$ left 4 units and then reflect across the $y$ -axis.
D) Shift the graph of $f$ up 4 units and then reflect across the $y$ -axis.