Final answer:
If Abed found matching fingerprints at a crime scene, it most likely means the suspect has been at that location since fingerprints serve as unique identifiers. So the correct option is C.
Step-by-step explanation:
If Abed found fingerprints at a crime scene that matched fingerprints taken from a suspect, the most likely meaning is C. The suspect touched something at the crime scene. Fingerprints are unique markers of individual identity, and when a suspect's fingerprints match those at a crime scene, it generally indicates that the suspect has been at that location. Forensic scientists compare various characteristics of the fingerprints found at the scene to those of a suspect's known prints. While not all 150 ridge characteristics need to be identical to confirm a match, there should be a sufficient number of concordant features to establish a reliable comparison.