Final answer:
Task performance involves carrying out a series of tasks and can be evaluated, making the correct answer 'none of the above'.
Step-by-step explanation:
The execution of a task or action taken by an individual, which involves a series or set of tasks with an endpoint, can be defined as task performance. It pertains to the ability to carry out individual tasks, and the analysis of such execution can lead to observations, outcomes, and action plans. In this context, the correct answer is none of the above, as individual performance can indeed be evaluated through various means, and the difficulty of the task is subjective and does not negate the ability to conduct an evaluation or assessment.