Find the Value for the Function $f ( 0 )$ When $f ( x ) = \sqrt { x ^ { 2 } + 2 x }$

Multiple Choice

Find the value for the function.
-Find $f ( 0 )$ when $f ( x ) = \sqrt { x ^ { 2 } + 2 x }$

A) $\sqrt { 6 }$
B) 0
C) 2
D) $\sqrt { 2 }$