Determine the Domain of the Given Function $$f ( x ) = \sqrt { x - 3 }$$

Multiple Choice

Determine the domain of the given function. $$f ( x ) = \sqrt { x - 3 }$$

A) all real numbers x
B) all real numbers x except x = 3
C) all real numbers x for which $x \geq 3$
D) all real numbers x for which $x \geq - 3$