An incident transverse wave pulse of amplitude \(A_0\) travels to the right along a single wire with linear mass density \(\mu_1\) under tension \(T\). At a Y-junction, the wire splits into two identical output strands, each maintained under the same tension \(T\) and having linear mass density \(\mu_2\). Assuming displacement and transverse force are continuous across the junction, which of the following expressions correctly represents the amplitude \(A_r\) of the reflected pulse in terms of \(A_0\), \(\mu_1\), and \(\mu_2\)?