Question: A. BFS is an optimal search algorithm in an unweighted graph. Explain what that means. B. A can be optimal in a weighted graph, but

A. BFS is an optimal search algorithm in an unweighted graph.

A. BFS is an optimal search algorithm in an unweighted graph. Explain what that means. B. A" can be optimal in a weighted graph, but only under certain conditions. What are they? C. We designed two heuristics for the 8-tile-puzzle. One of them dominates the other. Explain what that means. Which of these two heuristics is better

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