Use the Given Information About a Circle to Write an Equation

Multiple Choice

Use the given information about a circle to write an equation of the circle in standard form.
-The endpoints of a diameter are $( 3,11 )$ and $( - 9 , - 5 )$ .

A) $( x - 3 ) ^ { 2 } + ( y - 11 ) ^ { 2 } = 100$
B) $( x + 3 ) ^ { 2 } + ( y - 3 ) ^ { 2 } = 100$
C) $( x - 3 ) ^ { 2 } + ( y + 3 ) ^ { 2 } = 20$
D) $( x + 3 ) ^ { 2 } + ( y + 11 ) ^ { 2 } = 20$