Which of the following is correct regarding neuronal self-avoidance in both invertebrates and vertebrates?

A) They both rely on alternative splicing to generate the diversity required to uniquely identify each neuron.
B) They both result in tiling, in which not more than one neuron occupies a certain territory.
C) They both rely on protocadherins.
D) They both use a strategy in which homophilic recognition results in avoidance.
E) All of the above.