Question: Check all that apply for tail recursion: In factorial method example, if you return n * fact ( n - 1 ) , it is

Check all that apply for tail recursion:
In factorial method example, if you return n * fact(n-1), it is tail recursive
Tail recursive version is more memory efficient
With each successive calls, tail recursion requires more space in the stack
It occurs when all recursive calls are immediately followed by a return

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