You use Forefront Identity Manager (FIM) 2010 in your company network. After you perform the migration of FIM from the test environment to the production environment, you discover that requests for custom workflows fail. You need to ensure that custom workflows perform properly in the production environment. What should you do?

A.
Enable firewall access for Port 5725.

B.
Delete custom DLLs in the production environment.

C.
Implement the IActivitySettingsPart interface in Microsoft Visual Studio.

D.
Move custom DLLs from the test environment to the production environment.

E.
Run the CommitChanges.ps1 PowerShell script in the production environment.