This option best demonstrates the board of directors' governance over internal control by illustrating their role in ensuring the continuity and integrity of leadership, which is a crucial aspect of the internal control environment. Succession planning, especially for top leadership positions, is a critical governance role that impacts the organization's strategy and risk management practices.
Institute of Internal Auditors (IIA) - Guidelines on Governance Roles of Boards

Implementing fair work and pay practices and a policy to treat employees equitably and consistently will most likely reduce the pressure or incentive as a common characteristic of fraud. These measures can help diminish feelings of unfair treatment or dissatisfaction among employees, which are often drivers behind the rationalization for committing fraud.
Fraud Triangle and organizational behavior literature.

Purchasing professional liability insurance as a way to protect against lawsuits from customers claiming poor or erroneous advice represents a risk transfer strategy. By obtaining insurance, the investment advisory firm transfers the financial risk associated with potential legal actions to the insurance provider. This approach does not eliminate the risk but shifts the burden of financial loss.
Risk management techniques in the financial advisory sector

The chief audit executive should report the ongoing monitoring results of the quality assurance and improvement program (QAIP) to the board. This reporting is crucial as it provides the board with a continuous insight into the performance and effectiveness of the internal audit function, ensuring that any areas needing improvement can be addressed promptly. Ongoing monitoring is a key component of QAIP, as it involves regular review of performance against the standards and adapting processes as necessary to meet objectives.
The IIA's International Standards for the Professional Practice of Internal Auditing.

The level of competence of internal audit staff critically influences their proficiency in carrying out audit engagements. Competence encompasses the knowledge, skills, and other attributes necessary to perform audit tasks effectively. It affects the quality of the audits conducted and the value the audit team adds to the organization, ensuring that audits are performed with the required professional care and skepticism.
Institute of Internal Auditors (IIA) - International Professional Practices Framework (IPPF)