Mr Z is standing facing east. He takes a left turn and walks 5 km to reach point A. Then he takes a left turn and walks 4 km to reach point B. Then he takes a right turn and walks 3 km to reach point C. Finally, he takes a right turn and walks 10 km to reach point D.
Which side is Mr Z facing at point B?
1
North
2
South
3
West
4
East