Which of the options A-E completes the image below?
if we treat the non-grid lines as reflecting surfaces, the trajectories of beams trace out capital letters.
Thus in the first grid
a beam entering at the bottom left square, slightly above the middle of the left hand side and heading right (or bottom left, slightly left of the middle of the bottom side heading up) traces out a “B”
and in the second
a beam entering at the bottom left in the middle of the left side and heading right (or entering in the middle of the bottom square and heading up) traces out an “O”
and in the third
entering top left, middle of top side, heading down (or top right, middle of top side heading down) “U”
entering bottom left, middle bottom side heading up (or top right, middle top side heading down) “N”
entering top right, middle of right side heading left (or bottom right, middle of right side heading left) “C”
BOUNC suggesting an “E” or “Y” to follow. The B) grid with a beam entering in the bottom right middle of the right side and heading slightly above due left (or the middle right, middle of the top side, slightly above due left) gives an “E”