Graph (A, s ightarrow t ightarrow u ightarrow v ightarrow u ightarrow w ightarrow z ightarrow y

Graph \(A, s \rightarrow t \rightarrow u \rightarrow v \rightarrow u \rightarrow w \rightarrow z \rightarrow y \rightarrow x \rightarrow w\)

Use the figure to answer the following exercises. In each exercise, a graph and a sequence of vertices are given. Determine whether each sequence of vertices is an Euler trail, an Euler circuit, or neither for the graph. If it is neither, explain why.

u Graph A X Graph B W W Graph C Graph D y W