Which of the following lists represents the chemical components of a nucleotide?

• A. A nitrogenous base, an amino acid, and a pentose sugar
• B. A nitrogenous base, an amino acid, and a phosphate group
• C. A nitrogenous base, a fatty acid, and an amino acid
• D. A series of nitrogenous bases, a nucleic acid backbone, and a hexose sugar
• E. A nitrogenous base, a phosphate group, and a pentose sugar