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: Nortel stock battered by more bad news Shares in Nortel Networks Corp. dropped 9 per cent yesterday after the telecom equipment giant, the subject of several Canadian and US accounting probes, hinted that rivals are taking a bite out of its market share.

Business