Identify the Rate-Determining Step in the Electrophilic Aromatic Substitution of Benzene

Multiple Choice

Identify the rate-determining step in the electrophilic aromatic substitution of benzene.

A) Formation of an electrophile
B) Formation of a sigma complex.
C) Loss of a proton from the sigma complex.
D) Addition of an electrophile & loss of a proton
E) None of these