Final answer:
The leadership trait for assigning a task with minimum supervision is Responsibility, which encompasses proactivity, ownership, and resourcefulness in solving problems and contributing to the team.
Step-by-step explanation:
The leadership trait that permits a senior to assign a task with the understanding that it will be accomplished with minimum supervision is d) Responsibility. This trait is crucial, as a responsible leader will take ownership of tasks and ensure they are completed efficiently and effectively. Leaders should always strive to minimize the need for supervision by proactively providing updates and being resourceful, reaching out to team members for support or feedback when necessary.
A responsible leader will remain willing to go above and beyond when possible, be flexible in face of changing priorities, and respond professionally to feedback instead of defensively. If a problem is encountered, a leader with responsibility as a trait will often offer feasible solutions and try to solve difficulties independently prior to seeking support, respecting their manager's authority in the process. Owning up to mistakes or errors in judgement, participating actively, such as speaking up in meetings and embracing new projects, and seeking ways to contribute to areas that are a priority for the manager are all aspects of demonstrating responsible leadership.