Answer:
A. DNA
Step-by-step explanation:
DNA is the material that determines how cells are built and what cells will do. In addition, DNA is an essential nucleic acid for the transmission of our characteristics to our descendants. It is he who determines the phenotype of individuals. In eukaryotic organisms, this molecule is stored in the nucleus, where it is organized into chromosomes, as well as in mitochondria. DNA is made up of several nucleotides linked together by phosphodiester bonds established between the sugar of one nucleotide and the phosphate of the other.