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<單選題>將1到50這50個正整數平分成甲乙兩組，每組各25個數，使得甲組的中位數比乙組的中位數小1。試問共有幾種分法？
(1) \(C_{25}^{50}\)
(2) \(C_{24}^{48}\)
(3) \(C_{12}^{24}\)
(4) \((C_{12}^{24})^2\)
(5) \(C_{24}^{48} \cdot C_{12}^{24}\)