The correct answer is D) Many people enjoy eating sweets. However, they eventually realize you should eat a balanced diet.
Explanation:
Pronoun shift is a common grammatically mistake that occurs when one sentence begins with a specific pronoun (she, he, it, we, they, I) and this pronoun is changed although the writer refers to the same person. This is considered as a mistake because it is recommended pronouns are consistent in a sentence.
Pronoun shift occurs in "Many people enjoy eating sweets. However, they eventually realize you should eat a balanced diet" because the main pronoun of the sentence "they" that replaces "many people" is changed to "you" in the section "you should eat a balanced diet" and this is incorrect because instead the writer you have used "they" in all the sentence.
