Answer:
Aaron failure best illustrates the Change Blindness case.
Explanation:
Lets discuss deeply about the Aaron case,
When Aaron momentarily turned around to pick up his suitcase and turned back but could not observe that he was now speaking with a different desk agent, which is strange but it happens in the change blindness case. When a person can not detect the sudden change. It is a type of visual deficiency. So it is apparent that Aaron must be suffering from change blindness.
Change blindness is some type of perceptual wonder that can happen with the person, who does not experience the visual change and could not observe it.