Final answer:
Bullying is the repeated and intentional aggression directed by an aggressive child against a less powerful victim.
Step-by-step explanation:
The correct definition of repeated and intentional aggression directed by an aggressive child against a less powerful victim is bullying. Bullying is a form of negative social interaction where someone repeatedly inflicts harm, injury, or humiliation on another person. This behavior can be physical, verbal, or psychological in nature. Examples of bullying include physical attacks, spreading rumors, ignoring, or socially isolating others.