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: Cuba to End Circulation of U.S. Dollar Nov. 8  HAVANA (Reuters) - Cuba said on Monday that it was ending  circulation of the U.S. dollar in its territory as of Nov. 8 in  response to tightened U.S. economic sanctions.

World