From a point 'P', Rohit walks for 5 km towards east direction. He then turns right and walks for 2 km. Again he turns right and walks for 3 km; He then again turns right and walks for 2 km to reach a point 'Q'. What is the distance between the points 'P' and 'Q'?

A

4 km

B

1 km

C

2 km

D

3 km