The endpoints of a diameter of a circle are located at (5.9) and (11.17). Which is
an equation of the circle?
a) (r - 8)2 + (1 - 13)2 = 100
b) (1 - 5)2 + (y - 9)2 = 25
c) (x - 5)2 + (y - 9)2 = 100
d) ( -8) + (1 - 13)2 = 25