Which of the following represents the structure of a guanine deoxyribonucleotide?

Step-by-step solution

A nucleotide is composed of three components: a nitrogenous base, a pentose sugar, and a phosphate group. The question specifies a 'guanine deoxyribonucleotide'. This means the nitrogenous base must be guanine, the sugar must be deoxyribose (lacking an -OH group at the 2' position), and a phosphate group must be attached to the 5' carbon of the sugar. Analyzing the given options: Option (A) represents deoxycytidine, which is a nucleoside containing cytosine and lacks a phosphate group. Option (B) represents thymine