If your best path found using Bellman Ford algorithm contains a cycle, what does that mean about the graph edges? a.There is at least one positive edge in the graph. b.There are only negative edges in the graph. c.There are only positive edges in the graph. d.There is at least one negative edge in the graph. e.There are some 0 weight edges in the graph.

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Minimum Spanning Tree

A spanning tree is a sub-graph of a connected, undirected graph. It has all the vertices of a graph with the minimum possible number of edges. If a vertex is skipped, then it will not be a spanning tree. The edges of a spanning tree may or may not have weights.