The majority of a cell's deoxyribonucleic acid (DNA) is found in the nucleus, which acts as the cell's control center. While mitochondria also contain a small amount of DNA, it is significantly less than that in the nucleus. Other organelles like the golgi apparatus and central vacuole do not contain DNA. ;
The majority of a cell's DNA is found in the nucleus, which serves as the cell's control center. Although a small amount of DNA exists in mitochondria, the nucleus contains the largest quantity. Therefore, the correct answer is B (nucleus).
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