What would you use to define the monitoring sources allowed to communicate with the ServiceNow insta

What would you use to define the monitoring sources allowed to communicate with the ServiceNow instance for Operational Intelligence?

A. Metric Registration
B. Metric Config Rules

C. Metric Type Actions

D. Metric to CI

Reference: https://docs.servicenow.com/bundle/orlando-it-operations-management/page/product/event-management/concept/operational-intelligence-overview.html