Question: In a B + Tree a internal node that is not a leaf or the root must have: between ceiling ( ( N - 1

In a B+Tree a internal node that is not a leaf or the root must have:
between ceiling((N-1)/2) and N children
between ceiling((N)/2) and N-1 children
between ceiling((N-1)/2) and N-1 children
between ceiling(N/2) and N children

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