It would be the textbook glossary. A dictionary would be equally useful, but in a science class the teacher would want students to rely on the textbook glossary.
Answer:
The country is to serve its citizens and their needs.
Explanation:
<h2>
Answer:</h2>
<em>I would say the best answer is option three.</em>
<h2>
Explanation:</h2>
Choice A is my top choice in this question.