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: Vodafone finally launches 3G mobile London-based Vodafone has finally rolled out its mass-market third-generation (or 3G) mobile telephone services after a four-year wait, billions of pounds spent on licences and numerous delays.

Sci/Tech