The best course of action for the CIO in this scenario is to identify business risk appetite and tolerance levels.
Risk appetite is the amount and type of risk that an organization is willing to pursue, retain, or take in order to achieve its strategic objectives. Risk tolerance is the acceptable level of variation from the risk appetite. By identifying the business risk appetite and tolerance levels, the CIO can align the IT strategy and operations with the business goals, needs, and expectations, and ensure that the IT risks are managed within the acceptable boundaries. Identifying the business risk appetite and tolerance levels can also help the CIO to communicate and justify the IT decisions and actions to the senior management, board, and stakeholders, and to balance the costs and benefits of IT investments and initiatives. According to CPG 235 - Managing Data Risk, "The adequacy of data controls in ensuring that a regulated entity operates within its risk appetite would normally be assessed as part of introducing new business processes and then on a regular basis thereafter (or following material change to either the process, usage of data, internal controls or external environments)."

The best way for IT to achieve compliance with regulatory requirements is to enforce IT policies and procedures that align with the compliance standards and guidelines. IT policies and procedures are the documents that define the roles, responsibilities, rules, and expectations for the IT function and its activities. They help to ensure that the IT systems and processes are secure, reliable, efficient, and consistent with the business objectives and legal obligations. By enforcing IT policies and procedures, IT can demonstrate its compliance with regulatory requirements and avoid violations, penalties, or reputational damage. The other options are not as effective as enforcing IT policies and procedures for achieving compliance with regulatory requirements. Creating an IT project portfolio is a good practice for managing IT investments and resources, but it does not guarantee compliance with regulatory requirements. Reviewing an IT performance dashboard is a useful technique for monitoring and measuring IT performance and value delivery, but it does not ensure compliance with regulatory requirements. Reporting on IT audit findings and action plans is a necessary step for improving IT governance and control processes, but it does not achieve compliance with regulatory requirements. Reference:= What is IT Compliance? - Checklist, Guidelines & More | Proofpoint US, 6 Common IT Compliance Standards (A Guide to the Basics), Here's Why Regulatory Compliance is Important - Reciprocity

According to the CGEIT exam guide, the main focus of IT policies is to provide business value by aligning IT with business objectives and strategies, ensuring effective and efficient use of IT resources, and delivering IT-enabled capabilities that meet stakeholder needs and expectations. IT policies should also support the optimization of operational benefits, the enhancement of organizational capability, and the limitation of IT costs, but these are not the main focus of IT policies. References: CGEIT Exam Candidate Guide, page
13. CGEIT Certification

Integrating IT resource planning into enterprise strategic planning enables the enterprise to allocate resources efficiently to achieve desired goals, as it ensures that IT resources are aligned with the enterprise vision, mission, and objectives. IT resource planning also helps to identify and prioritize the IT needs and demands of the enterprise, and to allocate the appropriate resources (such as people, processes, technology, and information) to meet them123. References := CGEIT Exam Content Outline, Domain 2, Subtopic A: IT Resource Planning, Task 1: Ensure that IT resource planning is aligned with the enterprise strategic planning process.