DLP technologies are designed to prevent the unauthorized transmission or leakage of sensitive data, such as PII, intellectual property, or financial information, by employees or other insiders. DLP technologies can monitor, detect, and block data in motion, data at rest, and data in use across various channels, such as email, web, cloud, or removable devices. DLP technologies can also help enforce data security policies and compliance requirements.
References
ISACA CISA Review Manual, 27th Edition, page 253
The role of disclosures in risk assessment and mitigation
Mitigate Risk Strategy for Information Management

The best option that facilitates strategic program management is aligning projects with business portfolios (option C). This is because:
Strategic program management is the coordinated planning, management, and execution of multiple related projects that are directed toward the same strategic goals12.
Aligning projects with business portfolios means ensuring that the projects within a program are aligned with the organization's strategic objectives, vision, and mission .
Aligning projects with business portfolios helps to prioritize the most valuable and impactful projects, optimize the allocation of resources, monitor the progress and performance of the program, and deliver the expected benefits and outcomes .
Implementing stage gates (option A) is a process of reviewing and approving projects at predefined points in their lifecycle to ensure that they meet the quality, scope, time, and cost criteria. While this can help to control and improve the project management process, it does not necessarily facilitate strategic program management, as it does not address the alignment of projects with business portfolios.
Establishing a quality assurance (QA) process (option B) is a process of ensuring that the project deliverables meet the quality standards and requirements of the stakeholders. While this can help to enhance the quality and satisfaction of the project outcomes, it does not necessarily facilitate strategic program management, as it does not address the alignment of projects with business portfolios.
Tracking key project milestones (option D) is a process of monitoring and reporting the completion of significant events or deliverables in a project. While this can help to measure and communicate the progress and status of the project, it does not necessarily facilitate strategic program management, as it does not address the alignment of projects with business portfolios.
Therefore, the best option that facilitates strategic program management is aligning projects with business portfolios (option C), as this ensures that the projects within a program are consistent with the organization's strategic goals and objectives.
References: 1: Program Management: The Key to Strategic Execution 2: The Ultimate Guide to Program Management [2023] * Asana : Project Portfolio Management - PMI : Aligning Projects with Strategy - Harvard Business Review : What Is Stage-Gate Process? - ProjectManager.com : Quality Assurance in Project Management - PMI : What Is a Milestone in Project Management? - TeamGantt

An IT balanced scorecard is primarily used for measuring IT strategic performance. An IT balanced scorecard is a framework that translates the IT strategy into measurable objectives, indicators, targets, and initiatives across four perspectives: financial, customer, internal process, and learning and growth. An IT balanced scorecard helps to monitor and evaluate how well the IT function is delivering value to the organization, achieving its strategic goals, and improving its capabilities and competencies. The other options are not the primary uses of an IT balanced scorecard, because they either focus on specific aspects of IT rather than the overall performance, or they are not directly related to the IT strategy. References: CISA Review Manual (Digital Version)1, Chapter 1, Section 1.2.3