HURRY I NEED SOME HELP GET THIS RIGHT I'LL GIVE BRAIN THING

Which sentence has an error in capitalization?
A) The west side of the building was ripped up by the tornado's fury.
B) I have always wanted to live in the West on a dry and empty prairie.
C) My mother lives West of here in a little town by the name of Michaelton.
D) The wind blew north so ferociously that our wind vane blew off the house!