Which of the following reactions belong to electrophilic aromatic substitution?

1.  Bromination of acetanilide
2.  Coupling reaction of aryldiazonium salts
3.  Diazotisation of aniline
4.  Acylation of aniline

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

The bromination of acetanilide and coupling reaction of aryldiazonium salts is an example of electrophilic aromatic substitution reaction.
Coupling reaction of aryldiazonium salts