Suppose A is the truth, then bce is the whole truth (only four truths), which does not meet the meaning of the question, so A is a lie, so D is the truth; Suppose C is the truth, because the words of B and E are related, B is the truth D (four truths) and B is a lie D (two truths), but they are all irrelevant, so C lies, then the other three are all truths, so E is a thief.