In a distributed configuration environment, you are asked to configure content pre-caching to reduce the amount of time it takes for remote users to access frequently-used content. Which of these must be installed and correctly configured in order for content pre-caching to work?
A. Site Caching Services (SCS)
B. Content Intelligence Services (CIS)
C. File Transfer Protocol (FTP) Services
D. Documentum Messaging Server (DMS)