A. B, C, D fans have a dialogue. A said: "Y team can reach the final. " B said: "If team X can reach the final, then team Y can also enter the final. " "I think Y team can't make the final, but X team can make the final. " Ding said, "X team can't make the final. ". If only one of the four is right, can it be launched? ['h A. X and Y teams can reach the final.', 'X team cannot enter the final, Y team can enter the final.', 'Neither C. X team nor Y team can make the final.', 'X team can enter the final, Y team cannot enter the final.']