Hans is doing a degree in Business Management. Its the 8th week of the semester and he has a few assignments due soon. On Friday morning, a few good friends of his asked Hans to join a weekend camping trip to the Grampians National Park. Hans was really tempted to join them but he knew that he needed to spend time on the assignments during the weekend. It was a difficult decision for Hans to decline the invitation because he truly loves camping and outdoor activities, and he has never been to the Grampians before. In the evening, Hans wanted to work on an assignment but found it difficult to concentrate. This is most likely a phenomenon of:

Select one: a. Ego depletion b. Unconscious processing c. Hindsight bias d. Planning fallacy e. Regret