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: AT T Posts \$7.1 Billion Loss on Writedown  WASHINGTON (Reuters) - AT T Corp. on Thursday reported a  \$7.1 billion third-quarter loss due to an \$11.4 billion  writedown of its assets after its retreat from consumer  services and other restructuring charges.

Business