Write the Standard Form of the Equation of the Circle $( 0,0 ) ; \sqrt { 2 }$

Multiple Choice

Write the standard form of the equation of the circle with the given center and radius.
- $( 0,0 ) ; \sqrt { 2 }$

A) $x ^ { 2 } + y ^ { 2 } = 2$
B) $x ^ { 2 } + y ^ { 2 } = \sqrt { 2 }$
C) $x ^ { 2 } + y ^ { 2 } = 1$
D) $x ^ { 2 } + y ^ { 2 } = 4$