Missing Game Set

A game set has gone missing from the classroom. Mr Robert called up 4 pupils and interviewed them. Only one of them is telling the truth.

These are the statements:
Alice: I did not take the game set.
David: I think Bob took the game set.
Bob: Alice is lying.
Carol: Bob is lying.

Who took the game set?


Alice took the game set and Bob is telling the truth.

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