Easy Remember Recursion & Backtracking Multiple Choice

What is the recursion base case for Combination Sum (LC 39)?

Remember — Tests recall of fundamental facts and definitions.

Answer Options

A When path is empty

B When remaining == 0 (valid solution found)

C When index exceeds candidates length

D When path length equals target

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This question is from the Recursion & Backtracking topic (Algorithms).

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