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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Aparna 1
Preorder means Root-Left-Right or Node-Left-Right(NLR) sequence of the traversal of elements. In Binary search tree, left sided elements are smaller then the root and right sided elements are greater than the root value.. So we will check all options given in the question. By checking all options as shown in attached file, the correct answer is Option D i.e. 53124768