Final answer:
The CIO has the primary responsibility for the efficient and effective operation of IT in an organization, managing IT strategies and ensuring they align with organizational objectives.
Step-by-step explanation:
Among the given options, the CIO (Chief Information Officer) has the primary responsibility for the efficient and effective operation of IT in an organization. A CIO oversees the IT department, manages critical IT strategies, and ensures that the IT infrastructure supports the organization's goals and objectives. They play a pivotal role in the decision-making process regarding technology investments and implementations. The steering committee may influence IT governance, a security officer focuses on protecting the organization's digital assets, and a systems development manager oversees the creation and implementation of software applications.