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: BT in \$965m US network buy BT Group will buy California-based Infonet Services Corp for \$965 million in cash to expand in the United States and Asia, the UK #39;s dominant fixed-line company said on Monday.

Business