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How is an ammonium sulfate relaxer classified?

  1. High pH

  2. Low pH or no lye

  3. Medium pH

  4. High lye

The correct answer is: Low pH or no lye

An ammonium sulfate relaxer is classified as Low pH or no lye because it does not contain lye and has a lower pH compared to other relaxers. Option A is incorrect because it states "High pH" which would mean the relaxer contains a high amount of lye. Option C is incorrect because it states "Medium pH" which is not specific enough to classify the relaxer. Option D is incorrect because it states "High lye" which would mean the relaxer contains a high amount of lye. Therefore, the correct answer is B.