Write the Standard Form of the Equation of the Circle $y ^ { 2 } = 6 x ^ { 2 }$

Write the standard form of the equation of the circle with the center at (0,0) that has a radius of 6.

A) $y ^ { 2 } = 6 x ^ { 2 }$
B) $y ^ { 2 } = 36 x ^ { 2 }$
C) $x ^ { 2 } + y ^ { 2 } = 6$
D) $x ^ { 2 } + y ^ { 2 } = 36$
E) $y = 6 x ^ { 2 }$