Before a football match, A. B, C, and D athletes guessed their playing situation. A: None of us will play; B: Some of us will play; C: At least one of B and D will play; Ding: I will play. Two of the four guesses are true. Two guesses are false. Which of the following is true? ['Guess which of the following is really B and C.', 'Guessing is really Jia and Ding.', 'Guessing that it is really A and C.', 'Guessing is really B and D.']