The primary building blocks of a DNA molecule are

Anitrogenous bases, phosphates, and ribose sugar.
Bnitrogenous bases, phosphates, and deoxyribose sugar.
Cphosphorous bases, nitrogen, and ribose sugar.
Dphosphorous bases, nitrogen, and deoxyribose sugar.
Ecarbon, nitrogen, oxygen, phosphorous, and deoxyribose sugar.

Verified Answer :

the answer is option b.

the primary building blocks of dna molecule arenitrogenous base (adenine, guanine, cytosine, or thymine), a five-carbon sugar(deoxyribose in DNA), and one to three phosphate groupsnucleotide