Use Polar Coordinates to Find the Limit of the Function $$f ( x , y ) = \frac { x + y } { \sqrt { x + y } }$$

Multiple Choice

Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0) .
- $$f ( x , y ) = \frac { x + y } { \sqrt { x + y } }$$

A) 0
B) $\pi$
C) 1
D) No limit