Where do you add web resources to a Microsoft Dynamics CRM implementation?

Where do you add web resources to a Microsoft Dynamics CRM implementation?

A.
the file <system drive>:\Program Files\Microsoft CRM Client\res\Web\Web.config file

B.
the Settings area of the Microsoft Dynamics CRM instance

C.
the Microsoft Dynamics CRM Web service (CrmService.asmx)

D.
the Xrm.Page Script Library Template