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: Log in, rock on GONE are the days of having to buy a music album to get one good song - and of having to traipse to a music shop to do so. Online music stores have taken off in the past year, thanks in no small part to Apple #39;s 

Sci/Tech