From his house, Avinash went to Kapil’s house situated 500 m towards the north-east of his own house. From there, both of them went to Varun’s house situated 400 m towards the south of Kapil’s house. What is the shortest distance between Avinash’s current location and his location at the beginning?

A

900 m

B

400 m

C

300 m

D

500 m