1. A node that is a descendant of another node is called its

a. root

b. sibling

c. parent

d. child

2. Any node in a tree that does not have any children is refered to as a

a. leaf

b. tail

c. head

d. root

3. A binary search tree is a binary tree with what property?

a. An internal node is greater than all of its children

b. An internal node is less than all of its children

c. Has only two nodes

d. An internal node is greater than one of its children and less than its other one

4. In a binary tree, a node has how many children?

a. 0

b. 1

c. 0, 1, or 2

d. 2

5. The first Node in a binary tree is referred to as the

a. head

b. tail

c. leaf

d. root