Artificial intelligence
Heuristic function h(n) is ________

Average path cost
Cheapest path from root to goal node
Lowest path cost
Estimated cost of cheapest path from root to goal node

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Artificial intelligence
An algorithm A is admissible if ___________

It is not guaranteed to return an optimal solution when one exists
It guarantees to return more optimal solutions
It returns more solutions, but not an optimal one
It is guaranteed to return an optimal solution when one exists

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