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: Viagra introduces its latest celebrity backer: the devil Gone are the days when coyness ruled the marketing of the drug that helps the condition that men find hard to talk about. In a Madison Avenue dream situation, Viagra is facing some stiff competition in a three-way battle for ...

Business