You create a Microsoft Windows SharePoint Services site that uses a custom field type named TelephoneField. The assembly for TelephoneField is named TelePhoneField.dll. The definition file of TelephoneField is named fldtypes_telephone.xml.

You need to ensure that TelephoneField is available within the farm.

What should you do?

A.
Install DLL in the Global Assembly Cache (GAC), and copy the fldtypes_telephone.xml file to the 12\template\xml directory.

B.
Install DLL in the Global Assembly Cache (GAC), and copy the fldtypes_telephone.xml file to the 12\template\controltemplates directory.

C.
Copy the fldtypes_telephone.xml file to the 12\template\xml directory, and copy DLL to the bin directory of the SharePoint Web application.

D.
Copy the fldtypes_telephone.xml file to the 12\template\controltemplates directory, and copy DLL to the bin directory of the SharePoint Web application.