Mahesh starts walking towards east and after walking 30m takes right turn and walks again 30m. Then he turns left and walks 30m. Again he takes left turn and after walking 15m finally turn to his left and walks 60m. How far and in which direction is Mahesh from the starting point?
(A) 20m North
(B) 30m West
(C) 30m South
(D) 15m South