Which of the following factors would economists consider "key" to economic development? Select one: O a. expansionary monetary policy O b. establishing a system of property rights O c. policies that...

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Extracted text: Which of the following factors would economists consider "key" to economic development? Select one: O a. expansionary monetary policy O b. establishing a system of property rights O c. policies that promote consumption expenditures by households O d. All of these are correct.