Cell biology, plant cell

Hi guys, I don’t understand this question, I was sure about cell wall, cell membrane and mitochondrion, but in the answers it says that the answer is E, can someone explain this, please. Thank you!

As we know the DNA is located inside the nucleolus, and also the DNA is deoxyribonucleic acid (a carbohydrate) that is made of deoxyribose which is the monomer of the carbohydrate.

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I understood, thank you so much!