Which of the following modules provides an E2E encrypted channel in the HarmonyOS streaming architecture to provide a secure cross-terminal transmission mechanism for user applications?

Which of the following modules provides an E2E encrypted channel in the HarmonyOS streaming architecture to provide a secure cross-terminal transmission mechanism for user applications?
A . distributed soft bus
B . Forwarding task management services
C . Distributed security
D . Distributed task scheduling

Answer: C