The differential equation of the family of circles with fixed radius 5 units and centre on the line $$y = 2$$ is

A

$$(x - 2) y'^2 = 25 - (y - 2)^2$$

B

$$(y - 2) y'^2 = 25 - (y - 2)^2$$

C

$$(y - 2)^2 y'^2 = 25 - (y - 2)^2$$

D

$$(x - 2)^2 y'^2 = 25 - (y - 2)^2$$