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: Afghan opium cultivation area increased by 64 percent: UN : New York, Nov 19 : In a highly disturbing development, the area under opium cultivation in Afghanistan increased by 64 percent this year, giving the country the dubious distinction of establishing a new record in its cultivation and becoming the largest 

World