Write the Standard Form of the Equation of the Circle $( 0,0 ) ; 5$

Multiple Choice

Write the standard form of the equation of the circle with the given center and radius.
- $( 0,0 ) ; 5$

A) $x ^ { 2 } + y ^ { 2 } = 25$
B) $x ^ { 2 } + y ^ { 2 } = 5$
C) $x ^ { 2 } + y ^ { 2 } = 10$
D) $x ^ { 2 } - y ^ { 2 } = 5$