Which activity describes system monitoring in the security operate phase?

A.
Define processes and principles to address, manage, and monitor the security system
security-related issues

B.
Create final network documentation that reflects “as-built” information for customers,
including specific design requirements and configurations.

C.
Conduct monitoring activities, and report on service-level metrics and abnormal events or
trends that may adversely affect the availability, capacity, performance, and security of the
security system.

D.
Document planning of assumptions and decisions; facilitate communication among
stakeholders; and document approved scope, cost, and schedule baselines

Explanation: