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: Showdown In The Ruhr Valley Deep in the heart of Germany #39;s Ruhr Valley, a column of 25,000 angry blue-collar workers and their families has taken to the streets of Bochum, waving banners and red union flags, beating drums and blowing whistles.

Business