There are four children in the family, namely A. B, C, and D. One day, there are a few sweets on the table. The mother asks who stole the candy. The four children have their own words: A said: We Someone stole candy; B said: None of us four had candy; C said: At least one of B and D didn't eat candy; D said: I didn't eat candy. If two of the four children are telling the truth and two are telling the truth, the truth is:. ['The truth is A and C.', 'The truth is Jia Heding.', 'The truth is B and C.', 'The truth is that B and D.']