9. The peptide bond: (A) Results from condensation of any R-group or side chain of different amino acids with each other (B) Results from the condensation reaction between the α-carboxyl group of one amino acid with the α-amino group of a second amino acid (C) Results from the condensation reaction between the α-carboxyl group of one amino acid with the α-carboxyl group of a second amino acid (D) Results from the condensation reaction between the α-carboxyl group of one amino acid and ammonia (E) Results from the condensation reaction between the α-carboxyl group of one amino acid and ammonium ion