Computer Security Incident Response Team (CSIRT)?

Which of the following is a primary service of the U.S. Computer Security Incident Response Team
(CSIRT)?

A.
CSIRT provides an incident response service to enable a reliable and trusted single point of
contact for reporting computer security incidents worldwide.

B.
CSIRT provides a computer security surveillance service to supply a government with important
intelligence information on individuals travelling abroad.

C.
CSIRT provides a penetration testing service to support exception reporting on incidents
worldwide by individuals and multi-national corporations.

D.
CSIRT provides a vulnerability assessment service to assist law enforcement agencies with
profiling an individual’s property or company’s asset.