Which of the Following Is Seen in the Transaminase Mechanism $\alpha$

Multiple Choice

Which of the following is seen in the transaminase mechanism?

A) aldimine formed between pyridoxal and lysine residue
B) Schiff base
C) pyridoxamine phosphate that reacts only with an $\alpha$ -ketoacid
D) a carbanion that is resonance stabilized as a quinonoid intermediate
E) all of the above