If both of the child references of a binary tree node are non-null, it follows that the node must be ____.
A) a root node
B) a leaf node
C) a child node
D) an interior node

Name: If both of the child references of a binary tree node are non-null, it follows that the node must be ____. A) a root node B) a leaf node C) a child node D) an interior node
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Quizplus · Accepted Answer

An interior node in a binary tree is a node that has both left and right children, meaning both child references are non-null.

If Both of the Child References of a Binary Tree