Question: The matrix returned from the Python all _ pairs _ shortest _ path ( ) function may have entries that are _ _ _ _

The matrix returned from the Python all_pairs_shortest_path() function may have entries that are _____.
Question 20 options:
negative or positive, but not equal to 0
0 or positive, but not negative
negative, 0, or positive, but not infinity
negative, 0, positive, or infinity

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