Which of the following structures represents thymine?

Step-by-step solution

Thymine is a pyrimidine base found in DNA. Its chemical name is 5-methyluracil, which means it has a pyrimidine ring with carbonyl groups at the 2 and 4 positions, and a methyl group at the 5 position. Analyzing the given options: Option (A) represents Guanine, which is a purine base. Option (B) represents 2-deoxyribose, which is a sugar molecule. Option (C) represents Thymine (5-methyluracil). Option (D) represents Cytosine, which is a pyrimidine base with an amino group at the 4 position and a carbonyl group at t