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: Check 21 Places Demands on Banks #39; Customer Relations, Too On 28 October 2004, the Check Clearing for the 21st Century Act (Check 21) takes effect in the United States. This legislation creates a new legal instrument called the substitute check - defined as  quot;a paper 

Business