Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Wall Street stocks end mixed following sales warning from Wal-Mart NEW YORK : US stocks closed mixed as a warning over November sales from retail giant Wal-Mart Stores Inc cast a shadow over Wall Street, sparking fears that Christmas shoppers might spend less than expected.

Business