In a science lab, four researchers - Dr. Adams, Dr. Brown, Dr. Clark, and Dr. Davis - each have their own set of test tubes containing different chemical solutions. They place their sets in separate corners of the lab before leaving for lunch. While they're gone, an intern accidentally mixes up the sets while cleaning the lab. When the researchers return, what do they think about the location of their test tube sets?
When the researchers return, they would likely be confused and concerned about the location of their test tube sets. They might think that someone has tampered with or accidentally moved their sets while they were gone. This could lead to discussions among themselves to figure out what happened and how to correctly identify and relocate their respective test tube sets back to their original positions.