According to the CISM Review Manual, information asset classification is the first step in an information asset management program, as it provides the basis for determining the level of protection required for each asset. System owners, key applications and information asset inventory are subsequent steps that depend on the classification of the assets.
References = CISM Review Manual, 27th Edition, Chapter 1, Section 1.4.2, page 381.

Explanation/Reference:
Explanation:
Employees must be continually made aware of the policy and expectations of their behavior. Choice A would have little relevant bearing on the employee's behavior. Choice B does not involve the employees.
Choice C could be an aspect of continual reinforcement of the security policy.

Developing a stakeholder communication plan is a key preparation activity, ensuring roles, channels, and messaging are defined before an incident occurs so that information flows promptly and appropriately.

Sufficient senior management support is the most important factor for the success of an information security program. Security awareness training, although important, is secondary. Achievable goals and objectives as well as having adequate budgeting and staffing are important factors, but they will not ensure success if senior management support is not present.