Physical or verbal behavior intended to hurt someone; includes hostile and instrumental

• A. Aggression
• B. Stereotype
• C. Ingroup
• D. Outgroup

Answer: (A)

Aggression is physical or verbal behavior intended to hurt someone, and it covers both hostile aggression—driven by anger and aimed at causing pain—and instrumental aggression, where harm is a means to a further goal. This fits the description because it focuses on purposeful actions designed to inflict harm. Stereotype refers to beliefs about a group, while ingroup and outgroup describe social categories and group dynamics, not acts of harming others. So the term that best matches the given definition is aggression.