Let X be a node in a binary tree.Any node on the path from X to the root is called
A) a descendant of X
B) an ancestor of X
C) a superior of X
D) a subordinate of X

Question

Quizplus · Accepted Answer

Nodes on the path from X to the root are above X in the tree and thus are ancestors of X. Descendants of X would be nodes below X in the tree. "Superior" and "subordinate" are not commonly used terms in binary tree terminology.

Let X Be a Node in a Binary Tree