Answer: The correct answer is -
B) a sugar found in DNA.
Explanation:
DNA (deoxyribonucleic acid) is the genetic material of living organisms that is passed from one generation to the next generation.
It is composed of small units called nucleotides, which contain three components -
deoxyribose sugar ( 5 carbon or pentose sugar that lacks - OH at 2'position in the pentose structure and contains hydrogen in its place), a nitrogenous base (which can be adenine, cytosine, thymine or guanine) and a phosphate group.
Thus,option B) is the right answer.