Ethnographers are focusing more explicitly now on the importance of the individual in bringing about change. This is called individual .

agency

Explanation:

Agency is referred to as an individual's ability to influence his or her functioning & the specific course of events by his or her actions.

Individual agency: The term "individual agency" is described as a process in which an individual tends to act or work on his or her behalf. An individual agency consists of a specific amount of resources and capabilities that result in some people having greater power or agency as compared to others.

In the question above, the given statement represents "individual agency".

c. wright mills's sociological imagination suggest investigating to explain this increase?

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.