The correct answer is D) Uracil.
DNA, or deoxyribonucleic acid, is composed of three main components: a sugar (deoxyribose), a phosphate group, and nitrogenous bases. The nitrogenous bases found in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G). Uracil is a nitrogenous base that is present in RNA (ribonucleic acid) but not in DNA. Therefore, while sugar, phosphate, and nucleotides are integral parts of DNA, uracil does not belong in this context.