All of the following are categories of how the government invests in the revenue of the economy except? 1)free enterprise 2)physical capital 3)education and training 4)research and development

Which lake receives up to 9 million visitors each year, covers more than 90,000 acres, and was created by denison dam? a. the grand lake o' the cherokees b. lake thunderbird c. lake eufaula d. lake texoma