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: Virgin Group Enters US Online-Music Market The online digital-music business became a little more crowded as Richard Branson #39;s Virgin Group launched a music Web site in the US The Virgin Digital service sells songs for 99 cents each 

Sci/Tech