正解:C
Explanation
The information owner is the person who has the authority and responsibility for the information asset and its protection. The information security manager should contact the information owner as soon as possible after the incident has been confirmed, to inform them of the incident, its impact, and the actions taken or planned to resolve it. The information owner may also need to be involved in the decision-making process regarding the incident response and recovery. (From CISM Review Manual 15th Edition) References: CISM Review Manual 15th Edition, page 191, section 4.3.4.1.