You upgrade your computer from Windows NT Workstation to a Windows 2000 Professional computer. Your computer is a member of justtalks.com domain. Prior to this upgrade your computer was configured by a system policy to require at-least a 12 alphanumeric character password. After the upgrade your computer will not apply security policy. What should you do？（）

A. Use secedit.exe to refresh the security policy.
B. Use the local computer policy to configure the local security policy.
C. Use security configuration and analysis to support the security files as a .pol file.
D. Use computer management to configure the security policy setting.