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      Question

      What is a key characteristic of a "full binary

      tree"?
      A Every node has at most one child. Correct Answer Incorrect Answer
      B All leaf nodes are at different levels. Correct Answer Incorrect Answer
      C Every node has either zero or two children. Correct Answer Incorrect Answer
      D The tree is always balanced. Correct Answer Incorrect Answer
      E The root node has no children. Correct Answer Incorrect Answer

      Solution

      A full binary tree (or proper/strict binary tree) is defined as a tree where every node has either 0 or 2 children.

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