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: Cingular to use AT amp;T brand six months after merger Cingular Wireless LLC, AT amp;T Wireless Services Inc. and AT amp;T Corp. reported an agreement resolving issues related to the use of the AT amp;T brand in connection with Cingulars pending acquisition of AWS, as 

Sci/Tech