_______ is the skill of successfully handling more than one task at a time.

The skill of successfully handling more than one task at a time is known as multi-tasking. This involves being able to efficiently and effectively manage multiple activities simultaneously, often switching back and forth between tasks. Individuals who excel at multi-tasking can prioritize their workload and make the best use of their time and resources, allowing them to accomplish various objectives concurrently.

While organization, delegation, and planning are important skills in a work setting, they focus on different aspects of task management. Organization involves systematically arranging and managing tasks and resources, delegation is about assigning responsibilities to others to lighten one's workload, and planning is the process of outlining steps and strategies to achieve specific goals. Multi-tasking specifically addresses the ability to juggle various tasks at the same time, which is the core focus of the question.