A company recruited four people from A. B, and B to attend the interview. After the interview, the four predicted the results as follows: A said: "The four of us can enter the company. " Neither B nor I can join the company "; Ding said," No one can join the company ". The results showed that only two people's predictions were correct, and the two were:. ['A and C.', 'B and D.', 'B and C.', 'C and D.']