The direction of amino acid transfer to the growing polypeptide chain is

• A. from the P site to the A site on the ribosome
• B. from the A (aminoacyl tRNA site) site to the P (peptidyl tRNA site) site on the ribosome
• C. from the P site to the E site on the ribosome
• D. from the A site to the E (exit tRNA site) site on the ribosome