externalities include (select all that apply)\nconsumer demand\nwage equality\nenvironmental…

Brief Explanations:

Externalities are side - effects of economic activities that affect third - parties not involved in the production or consumption decision. Environmental impacts are a classic example of negative externalities where production or consumption activities harm the environment. Consumer demand and wage equality are not externalities. Consumer demand is related to the preferences of consumers for goods and services, and wage equality is about the distribution of income among workers.

Answer:

C. environmental impacts