Which Connect destination is exclusive to on-prem instances of Tanium?

The question is asking for a Connect destination that is exclusive to on-prem instances of Tanium. Connect is a Tanium module that allows users to export Tanium data to external systems. Out of the given options, SOL Server, AWS S3, and Email are not exclusive to on-prem instances of Tanium. However, File is a Connect destination that is exclusive to on-prem instances of Tanium. This is because on-prem instances of Tanium allow users to export data to a file on the Tanium server, whereas cloud instances of Tanium do not have this capability. Therefore, the correct answer is C.