Dutch painters in the sixteenth and seventeenth centuries often showed tables filled with large wheels of cheese or carved shards of butter. Some art historians, noting that dairy products were a major component of the Dutch diet, interpret these depictions as reflections of everyday Dutch eating habits. However, a group of researchers recently reviewed hundreds of food-related paintings and found that lemons--which could only be acquired in the Netherlands at great cost, since they had to be imported from warmer climates--feature in Dutch paintings of the period more than three times as frequently as dairy products do, thereby casting doubt on the idea that ________

Which choice most logically completes the text?