A)It separates tRNA in the A site from the growing polypeptide. B)It binds to the stop codon in the A site in place of a tRNA. C)It releases the amino acid from its tRNA to allow the amino acid to form a peptide bond. D)It supplies a source of energy for termination of translation. E)It releases the ribosome from the ER to allow polypeptides into the cytosol.