Which of the following statement(s) is/are correct as according to the given figures?
(i) In figure (a), for a ray starting from a point M in a square arrangement of four identical mirrors each (side x), the ray reaches at corner X after two reflections for angle 
(ii) For a point source of light(s) in front of a plane mirror PQ as shown in the figure (b), the length of reflected patch of light on the screen is 
A(i) only
B(ii) only
CBoth (i) and (ii)
DNeither (i) nor (ii)
why ?