Final answer:
Training and Development is the HRM function that helps in improving an organization's overall capability to meet changing business needs by developing its employee skills.
Step-by-step explanation:
The HRM function that helps in improving an organization's overall capability to meet changing business needs by developing its employee skills is Training and Development. Training is an important element of success and performance in many jobs, and it plays a crucial role in equipping employees with the necessary skills to adapt to changing business needs. Companies invest in training programs to upgrade the skills and knowledge of their workforce, allowing them to meet the evolving demands of the business environment.