All of the following are among the eight components of the optimal experience except one. Which one?

A) One can concentrate only on the task at hand.
B) Satisfaction is received from a task.
C) The activity has clear goals.
D) Attention is absorbed by the activity.

The concept of optimal experience, often associated with the psychological concept of "flow" as described by Mihaly Csikszentmihalyi, does not inherently include satisfaction from the task as a component. Instead, flow is characterized by complete absorption in the activity, clear goals, and the ability to concentrate fully on the task, among other factors. Satisfaction or happiness may result from flow experiences, but it is not considered a defining component of the experience itself.