The equation of the perpendicular bisector of the line obtained by joining the points (1, 1) and (3, 5) is

A

$$2x - 3y + 5 = 0 $$

B

$$x - y + 1 = 0 $$

C

$$x + 2y - 8 = 0 $$

D

$$3x + y - 9 = 0$$