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: United Aims to Replace Pension Plan (AP) AP - United Airlines' workers are getting formal details on how the bankrupt company wants to replace their traditional pension with a 401(k)-style benefit plan  #151; plus further steep reductions in pay and other benefits.

Business