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: ARM Buys Artisan With the acquisition of Artisan, ARM will be able to deliver a broad portfolio of system-on-chip intellectual property to its customers, says ARM chief executive Warren East.

Business