Let \(G = (V, E)\) be a simple undirected graph, and \(s\) be a particular…

Let $G = (V, E)$ be a simple undirected graph, and $s$ be a particular vertex in it called the source. For $x ∈ V$ , let $d(x)$ denote the shortest distance in $G$ from s to $x$ . A breadth first search (BFS) is performed starting at $s$. Let $T$ be the resultant BFS tree. If $(u,v)$ is an edge of $G$ that is not in $T$ , then which one of the following CANNOT be the value of $d(u) - d(v)$?