Find the Domain of the Given Function $$f ( x ) = \sqrt { 5 x + 25 }$$

Multiple Choice

Find the domain of the given function.
- $$f ( x ) = \sqrt { 5 x + 25 }$$

A) all real numbers $x$ where $x \geq 5$
B) all real numbers $x$ where $x > 5$
C) all real numbers $x$ where $x \geq - 5$
D) all real numbers $x$ where $x > \frac { 1 } { 5 }$