The situation that  illustrates the role of households in the circular flow of goods is "A family buys a new TV at an electronics store."
What is a circular flow of goods?
The circular flow illustrates the flow of money from producers to households and back again in an endless loop. The participants of the circular flow are households, producers, governments, and sometimes foreign countries.
The household contributes resources and money to the flow as consumers of the goods or services. The producers or manufacturers provide goods and income to the household.
The household's role in the circular flow of goods therefore can be inferred as that of a consumer and hence the statement "A family buys a new TV at an electronics store" best illustrates their role.
Therefore the correct option is C.
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