A person first travels towards North $$3\frac{1}{2}$$ km, then he turns left and travel $$1\frac{1}{2}$$ km and then turns towards left and travel for $$3\frac{1}{2}$$ km. How far is he from the starting point ?

A

2km West

B

$$1\frac{1}{2}$$ km West

C

$$2\frac{1}{2}$$ km East

D

None