Answer:
Cell > Nucleus > Chromosome > Gene > DNA
Explanation:
The answer is C because many of the funcions that the family used to serve have been outsourced to other institutions
those are nucleotides
since all three of them contain deoxyribose (because there's only one hydroxil group) they are DNA nucleotides
the first nucleotide has cytosine as it's nitrogenous base
the second nucleotide has adenine as it's nitrogenous base
the third nucleotide has thymine as it's nitrogenous base