Find out the opposite word of 'adulteration'-

Explanation: The word 'adulteration' means the act of adding impurities or foreign substances to something, especially food or drink, in order to lower the quality or value of it. Therefore, the opposite of 'adulteration' should be a word that means the act of removing impurities or foreign substances to restore the original quality of something. Option A, 'consternation', means a feeling of anxiety or dismay, which is not related to the meaning of 'adulteration'. Hence, option A is incorrect. Option C, 'rejuvenation', means the act of restoring something to a more youthful or energetic state. Although this may involve removing impurities, it does not specifically relate to the opposite of 'adulteration'. Therefore, option C is incorrect. Option D, 'normalization', means the act of making something normal or standard. This does not relate to the opposite of 'adulteration', and hence, option D is incorrect. Option B, 'purification', is the correct answer. It means the act of removing impurities or contaminants from something, and thus, it is the opposite of 'adulteration'. Therefore, option B is the correct answer.
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