Question: A heuristic is consistent if: Select one: The heuristic value at a node is less than or equal to the cost from that node to

A heuristic is consistent if:
Select one:
The heuristic value at a node is less than or equal to the cost from that node to a successor node plus the heuristic value of the successor.
The heuristic value decreases in proportion to the distance from the start node.
The heuristic value equals the actual shortest path cost to the goal.
The estimated cost is always increasing along a path.
It occasionally overestimates the cost to reach closer nodes.

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