There are two datasets A and B. The mean and median of dataset A, which consists of 5 distinct numbers, are both 25. Dataset B consists of 7 numbers, where 5 of them match the data in A, and the remaining 2 are $x$ and $y$. Which of the following statements are correct? Choose all that apply from $\langle$Remarks$\rangle$. [4 points]\\
(1) ㄱ\\
(2) ㄷ\\
(3) ㄱ, ㄴ\\
(4) ㄴ, ㄷ\\
(5) ㄱ, ㄴ, ㄷ