A demon was going to feed off an angel . Now Vash did n't really consider himself a literal angel and part of him was wondering if the girl he 'd talk to on the network had n't meant that she was a literal demon . That network did connect to some odd worlds , but the girl had sounded so sweet he doubted she was the type of demon he heard Rem mention when she spoke of God and Lucifer and Heaven and Hell . Oh well , it did n't matter . Vash took a seat on a sandstone bench near the edge of town , pulling off one boot in a futile attempt to shake sand out of it .

Question: Why did Vash need to shake his boot and remove sand from this feet ?
Answer: Vash was not able to use the bridge that allowed him to connect from one shore to the other .None of the above choices .Vash was being chased along the beach by a demon that was sent from hell .Vash took a walk along the beach and he got sand on his feet .