The correct answer is "The process of creating proteins."
Reason: Protein synthesis is the biological process through which cells generate new proteins. This process involves two main stages: transcription and translation. During transcription, the DNA sequence of a gene is copied to produce messenger RNA (mRNA). Then, during translation, the mRNA is used as a template to assemble amino acids into a polypeptide chain, which folds into a functional protein. The other options provided relate to different biological processes not specifically defining protein synthesis.