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: RealNetworks Sells 1 Million Songs Since Price Cut RealNetworks Inc. (RNWK.O: Quote, Profile, Research) has sold more than a million song downloads since launching a 49 cent per song campaign a week ago, the Internet media and software company said on Tuesday.

Business