The correct option is C Translation
DNA replication and transcription occurs in the nucleus. Ribosomes are present in the cytoplasm and serve as a site for translation (protein synthesis) of mRNA into an amino acid sequence of the polypeptide. Translocation is the step in elongation cycle of protein synthesis and includes transfer to tRNA from the A site to the P site of the ribosome. Repression refers to inhibition of gene expression which targets mRNA. Thus, the correct answer is option C.