Answer:
A. Everyone has a unique set of fingerprints.
Step-by-step explanation:
A is the only fact. Both B and C are opinions, since they state the feelings or thoughts of a certain person. Not everyone thinks that fingerprints look weird close up (this can't be scientifically proven), and not everyone thinks that it would be great if people memorized their fingerprints (again, this can't be scientifically proven). So, statement A is the only answer which has an actual fact, since we know for sure that each person has a unique set of fingerprints.
Hopefully that's helpful! :)