The function low [u] in DFS traversal is used to

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Answer: A. Store the lowest sequence number reachable from u or its descendants

1. A.

   Store the lowest sequence number reachable from u or its descendants

2. B.

   Store the highest sequence number of a vertex reachable from u

3. C.

   Keep track of the number of times u has been visited

4. D.

   Count the number of connected components in the graph

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