Final answer:
The CIO's primary roles include acting as the lead security officer, educating the organization about technology initiatives, and marketing technology projects to stakeholders.
Step-by-step explanation:
The Chief Information Officer (CIO) is responsible for a variety of tasks within an organization, but monitoring the appropriate level of employee headcount is not one of them. The CIO's primary roles include acting as the lead security officer, ensuring the organization's technology is secure and protected, educating the organization about technology initiatives, and marketing technology projects to stakeholders. These tasks are crucial to the success and growth of an organization's technology infrastructure.