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: Canada #39;s richest worth over 100 billion US dollars Canada #39;s richest people are richer than ever, as the Canada #39;s 100 wealthiest people have a total net worth over 100 billion US dollars, up by about 7.2 billion US dollars from 

Business