Let N be a node in a B-tree. If N has m subtrees S0, S1, S2, …, Sm–1, and N’s key values are K1, K2, K3, …, Km–1, then which of the following statements is true?

a) All values in subtree S0 are greater than K1.
b) All values in subtree S1 are less than K1.
c) All values in subtree Sm–2 are greater than Km–2.
d) All values in subtree Sm–1 are less than Km–1.


c.

Computer Science & Information Technology

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