Explain the meaning of the following concepts in terms of the production possibility frontier. 1.2.1 Attainable points of production 1.2.2 Unattainable points of production 1.2.3 Inefficiency

Explain the meaning of the following concepts in terms of the
production possibility frontier.

1.2.1 Attainable points of production

1.2.2 Unattainable points of production

1.2.3 Inefficiency