Answer:
B
Explanation:
The four nitrogenous bases in DNA are A: adenine, G:guanine, C: cytosine, and T: thymine.
Pyrimidine and purine are the two classes of the bases in DNA and RNA, not the actual bases themselves.
Uracil is a nitrogenous base found in RNA, that is switched for thymine in DNA. It is not found in DNA.
Therefore, the correct answer is B: Adenine, guanine, cytosine, and thymine
