Gabriela owns a company that makes silk scarves. She buys the silk from an overseas supplier and is subject to a tax on imported goods. Gabriela most likely lives in

A tax on imported goods is a form of government regulation of international trade. In a mixed market economy, businesses are privately owned and make many of their own decisions, while the government still regulates some economic activity. That fits Gabriela's situation, so the best choice is “a mixed market economy with some government regulation.”

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