Question: Consider a state space with finite branching factor and infinite depth. Which one of the following will save space for BFS while preserving its completeness?

Consider a state space with finite branching factor and infinite depth.

Consider a state space with finite branching factor and infinite depth. Which one of the following will save space for BFS while preserving its completeness? Apply goal-test when PUSHING a successor state to the frontier Apply goal-test when POPPING a state from the frontier Use LIFO stack instead of FIFO queue The three variants will have similar space usage

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