Question: ( 2 ) For the following statements about red - black trees, please justify the CORRECT statements. , A subtree of a red - black

(2) For the following statements about red-black trees, please justify the CORRECT
statements. , A subtree of a red-black tree is itself a red-black tree.
ii, The sibling of an external node is either external or it is red.
iii, There is a unique (2,4) tree associated with a given red-black tree.
iv. There is a unique red-black tree associated with a given (2,4) tree.

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