The pronoun IT in the sentence “When we eat something with sugar in it,particularly refined sugar, enzymes in the saliva in the mouth begin to work...

The pronoun IT in the sentence “When we eat something with sugar in it,particularly refined sugar, enzymes in the saliva in the mouth begin to work immediately to change that sugar into a type of carbohydrate” refers to the word: Choose the right answer A ) sugar B ) something C ) saliva D ) mouth