The Suggested Mechanism of Catalysis for the Peptide Bond Formation $\alpha$

The suggested mechanism of catalysis for the peptide bond formation during protein synthesis involves

A) a guanine group that produces acid-base catalysis in the attack of the amino group of one amino acid to the carboxylic acid function of the other.
B) an acid-base catalysis effected by a glutamic acid in the RNA during the nucleophilic attack of the amino group on the acyl carbon of the peptide.
C) A tetrahedral intermediate formed by the attack of a base from the tRNA on the $\alpha$ -amino group of the incoming amino acid.
D) a total or partial removal of a proton on the $\alpha$ -amino group of an amino acid facilitating the attack on the acyl carbon of the growing peptide on the tRNA.
E) a nucleophilic attack of an adenine on the $\alpha$ -amino group of the incoming amino acid.