Question: Consider the tree in Figure 1 5 - 1 8 . What node or nodes are a . The tree's root? b . Parents? c

Consider the tree in Figure 15-18. What node or nodes are
a. The tree's root?
b. Parents?
c. Children of the parents in part b?
d. Siblings?
e. Ancestors of 50?
f. Descendants of 20?
g. Leaves?
 Consider the tree in Figure 15-18. What node or nodes are

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