A jewellery shop was stolen, and the police found the following clues: (l) One of the three persons A. B, and C was a criminal; (2) If A was a criminal, then B was a co-offender; (3) When the theft occurred, B Drink coffee in the coffee shop. visible;. ['A is a criminal.', 'A and B are criminals.', 'A. B, and C are criminals.', 'C is a criminal.']