You have a Visual Studio Team Foundation Server 2010 environment. Your build lab includes multiple build servers.
You configure the build servers, build controllers, and build agents for a team project collection. You customize the build process workflow file to include custom activities that you have compiled into an assembly.
You need to ensure that the assembly is loaded by the build service process on the build servers.
What should you do?

A.
Copy the assemblies to the %ProgramFiles%\Microsoft Team Foundation Server\Build\CustomAssemblies folder on each build agent server.

B.
Copy the assemblies to the %ProgramFiles%\Microsoft Team Foundation Server\Build\CustomAssemblies folder on each build controller server.

C.
Add the custom assemblies to the working directory of the build agent.

D.
Add the custom assemblies to a version control folder and configure the Version Control Path to Custom Assemblies property of the build controller.