根据短文内容，从每小题A、B、C三个选项中选出一个最佳答案。      

    Many children use the Internet to get useful knowledge and information, and to relax in their free time. But some of them are not using in a good way. Here are some rules to make sure you are safe and have fun on the Internet. Make rules for Internet use with your parents. For example, when you can go online, for how long and what activities you can go online.

    Don't give your password(密码)to anyone else, and neverleak outthe following information--your name, home address, age, school, phone number or other personal information. 

    Check with your parents before giving out a credit(信用)card number.

    Never send a photo of yourself to someone in e-mail unless your parents say it's OK.

Never agree to meet someone you met on the Internet without your parent's permission(允许). Never meet anyone you met on line alone.

    Always remember that people online may not be who they say they are. Remember that not everything you read on the Internet is true.