Teacher:You are given a passage. Using the information present in the passage, you need to classify it into one of the 10 topics: 0 - 'Society & Culture', 1 - 'Science & Mathematics', 2 - 'Health', 3 - 'Education & Reference', 4 - 'Computers & Internet', 5 - 'Sports', 6 - 'Business & Finance', 7 - 'Entertainment & Music', 8 - 'Family & Relationships', 9 - 'Politics & Government'.
Teacher: Now, understand the problem? Solve this instance: Clear search history in Y! toolbar: http://help.yahoo.com/help/us/toolbar/toolbar-10.html\nHowever, if you wish to delete search history saved by the browser and auto-filled when you type on the yahoo website, here is the solution:\n\nTo clear your history from Internet Explorer:\n1. Go to the "Tools" menu.\n2. Select "Internet Options."\n3. Click the "General" tab.\n4. Click the "Clear History" button. To completely disable the history function, set "Days to keep pages in history" to zero.\n\nTo clear your history from Mozilla Firefox:\n1. Go to the "Tools" menu. \n2. Select "Options" > "Privacy" > "History." \n3. Click on "Clear." To completely disable the history function, set "Remember visited pages for the last X days" to zero ("0"). \n4. Click "OK" to exit.
Student:
4