Which of the following statements about the elongation phase of translation is correct?

• A. Peptidyl transferase activity of the ribosome catalyzes the formation of peptide bonds between amino acids
• B. The small ribosomal subunit is responsible for translocating the tRNA and mRNA during elongation
• C. GTP is hydrolyzed by elongation factor Tu (EF-Tu) to provide energy for peptide bond formation
• D. Release factors are involved in adding amino acids to the growing polypeptide chain during elongation

Answer: (A)