A man walks 12m east from point A and reaches point B. From point B he talks left turn and walks 4m and then he talks right turn and walked 6m and again he takes right turn and walks 7m and again takes right turn and walks for 6m and reaches point M, then what is the distance between B and M ?
A. 7m
B. 6m
C. 5m
D. 3 m
