The correct answer is A. Interact
Step-by-step explanation:
Sociology is the disciple or study of society including the structures of it, the interaction, the culture and in general terms all the elements that relate to it. Because of this one of the most important concept for sociologies is "society" about this they define "society" as a group of people or individuals that commonly share the same territory or live in a certain area but also share cultural features and are involved constantly in social interaction, as it is this interaction the one that creates social relationships and that made possible cultural and interactional elements in society. This means, for a group of people to be part of a society they need to live in the same are and interact. Therefore, a sociologist defines society as a group of people who reside in a defined are share culture, but also those who interact.