Chapter 11, Problem 4RQ

To determine

(a)

To define:

Rooted tree and the root.

To determine

(b)

To define:

The parent and child of a vertex.

To determine

(c)

To define:

Internal vertex, leaf and sub tree.

To determine

(d)

To draw:

A rooted tree with at least $10$ vertices, where the degree of each vertex does not exceed $3$.