You are the administrator of a workgroup supporting Windows 2000 Professional computers. You configure the Group Policy by setting the Account lockout duration to 0. What effect will this have？（）

• A、Users will never be locked out.
• B、Users will be locked out for 69 days.
• C、Users will be locked out after one failed logon attempt.
• D、Users will be locked out indefinitely until the Administrator unlocks the user account.