One morning, after walking a few metres eastward from his house, Harish took three successive left tums walking 180 m, 170 m and 300 m in succession. Finally, he turned right and walked 200 m to reach the temple, which is towards the south-west of his house. If the shortest distance between his house and the temple is 150 m, how far did he walk eastward from his house initially?

A

110 m

B

260 m

C

320 m

D

280 m