Malini went from her office to the bank. She started her journey facing West. First, she went 2 km straight; then she turned to her right and went. 3 km: finally, she wined left and walked 2 km to reach the bank.
What is the shortest distance between Malini's office and the bank?

A

3.5 km

B

3 km

C

4 km

D

5 km