Which contributed most to the decline of subsistence farming and rising cash crop farming a). the scarcity of land b). the declining selling price of crops c). the rising costs of slaves d). improvements of transportation

How could a works-cited list a reader determine whether to believe the claims you make in an essay? a. by synthesizing your conclusions into a simple objective summary o b. by proving that your claims are supported with credible evidence ) c. by allowing you to make claims without quoting other writers o d. by providing a clear organizational structure to your essay