a. In the circular flow model, 0 resource markets provide for the goods and services and product markets provide for the exchange of labor. 0 labor markets provide for the transfer of money and goods markets provide for the transfer of inputs. 0 goods markets provide for the transfer of money and labor markets provide for the transfer of inputs. 0 resource markets provide for the exchange of labor and product markets provide for the exchange of goods and services. b. In the circular flow model, 0 businesses sell both goods and labor; households buy both goods and labor. 0 businesses sell goods and buy labor; households buy goods and sell labor. 0 businesses buy both goods and labor; households sell both goods and labor. 0 businesses buy goods and sell labor; households sell goods and buy labor. c. In the goods and services portion of the circular flow model, there is a flow of 0 real goods and services and a flow of labor. 0 real goods and services and a flow of output. 0 labor and a flow of money. 0 real goods and services and a flow of money