Question: Run the DFS topological ordering algorithm on this graph, starting with vertex D; whenever there's a choice of vertices, pick the one that is alphabetically

Run the DFS topological ordering algorithm on this graph, starting with

Run the DFS topological ordering algorithm on this graph, starting with vertex D; whenever there's a choice of vertices, pick the one that is alphabetically LAST. Answer all the following questions for this graph: (a) Indicate the pre and post numbers of the nodes. (b) What are the sources and sinks of the graph? (e) What topological ordering is found by the algorithm? (d) How many topologieal orderings does this graph have

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