After a certain tax inspection, the four business executives had the following conclusions: A: All self-employed individuals did not pay taxes. B: The clothing self-employed owner Chen paid taxes. C: Not all individual businesses did not pay taxes. D: Some self-employed individuals did not pay taxes. If only one of the four people is determined to be true, which of the following is true? ["Ding's decision is true and boss Chen has not paid taxes.", "Ding's decision is true, but boss Chen paid the tax.", "C's decision is true, and Chen paid the tax.", "C's decision is true, but boss Chen did not pay taxes."]