Two persons A and B, stand at the same point. A walks 5 km East, takes a right turn and walks 3 km and turns left and walks 4 km. B walks 2 km towards West; turns right and walks 4 km; turns right again and walks 11 km. How far is A from B?
1
7 km
2
5 km
3
9 km
4
11 km