\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Let \(A(1, 2, 3)\), \(B(3, 4, 5)\), and \(C(7, 8, 9)\) be three points in space. Show that points \(A, B\), and \(C\) are aligned.
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