Which vRealize Operations component should be deployed to a secondary site to ensure vRealize Operations can receive data from an edge vCenter Server?

Which vRealize Operations component should be deployed to a secondary site to ensure vRealize Operations can receive data from an edge vCenter Server?
A. Remote Collector node
B. Witness node
C. Secondary node
D. Analytics node

ANSWER: A
Explanation:
Reference: https://docs.vmware.com/en/vRealize-Operations/8.6/vrealize-operations-86-help.pdf