Let \(a\), \(b\), and \(c\) be arbitrary nodes in subtrees \(\alpha\), \(\beta\), and \(\gamma\), respectively, in the right tree of Figure 13.2. How do the depths of \(a\), \(b\), and \(c\) change when a left rotation is performed on node \(x\) in the figure?

\(a\) increases by 1, \(b\) stays the same and \(c\) decreases by 1.