Mehek goes for a stroll from her home. She starts walking facing the Sun at 6:00 am in the morning and walks 1 km straight. At a crossroads, she takes a right turn and then walks 1 km. Finally, she takes a U-turn and walks again for 1 km. How far is she from her home?

A

3 km

B

1 km

C

2 km

D

4 km