1. nucleophilic addition
2. nucleophilic substitution
3. electrophilic substitution
4. electrophilic addition
Solution: electrophilic substitution
Bromination is the reaction that is taking place here (electrophilic aromatic substitution).
The NH2 group of aniline is ortho para directing, and it is highly activated. Tribromination will occur since it is highly active, and all two ortho positions and the para position will be brominated.
As a result, 2,4,6-tribromoaniline will be the end product.