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题目材料：
Despite the widespread availability of electrical refrigeration, the antimicrobial properties of spices may still be useful. During 1971-1990. food poisoning-primarily bacterial一affected 29 out of every 100,000 Japanese but only 3 out of every 100,000 Koreans, despite the countries' similar temperate climates. Lee s suggestion that the difference may have been due to cultural variations in food handling and preparation may well be correct. But, in addition, although Japanese meat-based recipes collectively used more kinds of spices, Korean recipes more frequently called for at least one spice, contained more spices per recipe, and more frequently called for highly inhibitory spices. As a result, an average Korean recipe most likely inhibits a significantly greater fraction of bacteria than an average Japanese recipe.
Select the sentence that describes the evidence from which the author derives an explanation of a phenomenon.
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ADespite the widespread availability of electrical refrigeration, the antimicrobial properties of spices may still be useful.
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BDuring 1971-1990. food poisoning-primarily bacterial-affected 29 out of every 100,000 Japanese but only 3 out of every 100,000 Koreans, despite the countries' similar temperate climates.
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CLee s suggestion that the difference may have been due to cultural variations in food handling and preparation may well be correct.
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DBut, in addition, although Japanese meat-based recipes collectively used more kinds of spices, Korean recipes more frequently called for at least one spice, contained more spices per recipe, and more frequently called for highly inhibitory spices.
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EAs a result, an average Korean recipe most likely inhibits a significantly greater fraction of bacteria than an average Japanese recipe.
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