Use the diagram to answer the question. Which phrase would accurately complete the diagram? a. increased tariffs on imported grain crops b. reduced storage and shipping costs for farmers c. greater access to Native American lands d. incentive to limit production of cash crops

The phrase that would accurately complete the diagram is to increased tariffs on imported grain crops. The answer is letter A. Imported grain crops are exported from different parts of the country and it is understandable that they are the ones whose tariffs are to be increased. Since tariffs are fixed amount, unlike other products that are locally grown, they must be increased.