Which of the Following Statements About the Mechanism of Electrophilic

Multiple Choice

Which of the following statements about the mechanism of electrophilic aromatic substitution is not true?

A) All electrophilic aromatic substitution reactions occur via a two-step mechanism.
B) The transition state of the first step is lower in energy.
C) The first step is the rate-determining step.
D) The second step is the fast step.