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      Question

      Which traversal method visits the root node first in

      trees?
      A Inorder Correct Answer Incorrect Answer
      B Preorder Correct Answer Incorrect Answer
      C Postorder Correct Answer Incorrect Answer
      D Level-order Correct Answer Incorrect Answer
      E Spiral-order Correct Answer Incorrect Answer

      Solution

      Preorder traversal visits root, then left subtree, then right subtree.

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