Which of the following is the BEST approach to assist an enterprise in planning for iT-enabled investments?

Enterprise architecture (EA) provides a comprehensive blueprint of an organization's business, information, application, and technology landscapes, aligning IT investments with business strategy. By detailing the current and target states of IT systems and business processes, EA ensures that new IT-enabled investments are integrated effectively, avoid redundancy, and deliver optimal value to the enterprise.

IT process mapping focuses on documenting and improving individual IT processes, which is too granular to serve as a comprehensive planning tool for overall IT-enabled investments.

Task management is a low-level operational activity for organizing and tracking individual tasks, not a strategic planning approach for enterprise-wide investments.

Service level management focuses on defining, agreeing, and managing the quality of IT services, which is an operational concern rather than a strategic planning tool for future investments.