Which of the following statements about food prices is CORRECT？A．The price of vegetable is
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Which of the following statements about food prices is CORRECT？
A．The price of vegetable is going down in summer.
B．All food prices are listed on the USDA website.
C．Bread prices are marked down every day.
D．Grains prices are going up because of the drought.
请帮忙给出正确答案和分析，谢谢！