For a keyword search query with two keywords, a Steiner tree algorithm is not necessary to find the lowest-cost tree. What algorithm can be used instead?  (A)Heuristics-based graph expansion  B Prestige scoring algorithm  C Backward expansion  (D)Threshold-based merging

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A: The Answer is

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Q: For a keyword search query with two keywords, a Steiner tree algorithm is not necessary to find the…

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A: The Answer start from step-2.

Q: Provide the order of node traversals for both Depth-First Search (DFS) and Breadth-First Search…

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