Which Reaction in Protein Synthesis Leads to Formation of an Ester

Multiple Choice

Which reaction in protein synthesis leads to formation of an ester bond in one of its products?

A) tRNA charging with amino acids
B) binding of aminoacyl-tRNA to the ribosome
C) reaction of the A-site acylated-tRNA with the P-site acylated-tRNA
D) the translocation step in protein synthesis
E) release of the final peptide product