Write the Standard Form of the Equation of the Circle $( x - 5 ) ^ { 2 } + ( y - 6 ) ^ { 2 } = 4$

Multiple Choice

Write the standard form of the equation of the circle.
-The endpoints of a diameter are (3, 6) and (7, 6) .

A) $( x - 5 ) ^ { 2 } + ( y - 6 ) ^ { 2 } = 4$
B) $( x + 5 ) ^ { 2 } + ( y + 6 ) ^ { 2 } = 4$
C) $( x - 5 ) ^ { 2 } + ( y - 6 ) ^ { 2 } = 2$
D) $( x + 5 ) ^ { 2 } + ( y + 6 ) ^ { 2 } = 2$