Answer:
13. D
14. False
15. C (If I remember correctly)
I would say that it would be nodding your head, asking questions, of course, looking at the speaker, stuff like that. Mainly asking questions
The correct answer among the choices listed is option A. A group of interdependent people who have organized in such way as to share a common culture and feeling of unity is a society. These group of people live together in a particular area having common interests and traditions.