During translation a peptide bond forms between the r group of a. the first amino acid and the carboxyl group of the second amino acid. b. the central b-carbon of the first amino acid and the amino group of the second amino acid. c. the amino group of the first amino acid and the r group of the second amino acid. d. the carboxyl group of the first amino acid and the amino group of the second amino acid. e. the amino group of the first amino acid and the carboxyl group of the second amino acid.