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: Calif. Panel Weighs Greenhouse Gas Plan for Cars A plan to require automakers to cut greenhouse gas emissions from cars and trucks by about 30 percent is expected to be approved on Thursday by the California Air Resources Board, backers and opponents said.

Sci/Tech