A gap analysis is most useful in addressing the differences between the current state and an ideal future state. It is not as appropriate for evaluating a business impact analysis (BIA), developing a balanced business scorecard or demonstrating the relationship between variables.

Section: INFORMATION RISK MANAGEMENT
Explanation:
The security manager would be most concerned with whether residual risk would be reduced by a greater amount than the cost of adding additional controls. The other choices, although relevant, would not be as important.

Explanation
The next step for the information security manager should be to inventory and review the current security policies to understand the existing security requirements, controls, and gaps. This will help to identify the areas that need to be updated, revised, or replaced to align with the current business needs and objectives, as well as the legal and regulatory requirements. Updating the policies in accordance with the best business practices, performing a risk assessment of the current IT environment, or gaining an understanding of the current business direction are important activities, but they should be done after reviewing the current security policies.
References = CISM Review Manual, 16th Edition eBook1, Chapter 1: Information Security Governance, Section: Information Security Policies, Standards, Procedures and Guidelines, Subsection: Information Security Policies, Page 28.