Answer: the correct answer is C. RNA is being translated.
A protein is assembled when mRNA ( messenger RNA) is translated at the site called ribosomes. mRNA contains codons, which are used in the process of protein synthesis as each codon ( a sequence of three nucleotide) is specific for an amino acid.
According to the Central Dogma, genetic information is transmitted in this manner-
DNA → mRNA → Proteins.
This indicates that genetic information carried by DNA ( deoxyribonucleic acid) is first converted into mRNA in a process called transcription and then mRNA is converted into proteins in the process called translation.
Thus, option C) is the right answer.