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: Artificial heart maker seeking OK to sell device After 22 years of experimentation, the maker of the nation's first self-contained artificial heart yesterday asked the federal government for permission to begin selling up to 4,000 of the devices each year as a last-chance treatment for people with irreversible heart failure.

Business