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How do I ask a question? What if I can’t find a category for my question? Once I submit my question, can I still edit or delete it? How will I know when my question has been answered? What do I have to do once my question has been answered? What if I don’t want to close the question after 4 days and after extending the expiration date? How do I choose the best answer? After I choose the best answer, can I change my mind and choose a different answer? Once I rate a best answer, can I go back and revise my rating? What if my question doesn’t get any answers? How many times can I extend the expiration date of a question? I have multiple Yahoo! accounts. Can I use these accounts to participate as different people?