Question: Discrete Math Four friends have been identified as suspects for an unauthorized access into a computer system. They have made statements to the investigation authorities.

Discrete Math

Four friends have been identified as suspects for an unauthorized access into a computer system. They have made statements to the investigation authorities. Mia said Bob did it. Tom said I did not do it. Bob said Diana did it. Diana said Bob lied when he said that I did it. If the authorities also know the exactly one of the four suspects is telling the truth, who did it?

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