Researchers who propose that individuals are aggressive because there is competition for resources such as food adhere to the theory of aggression.

A) ecological
B) evolutionary
C) social cognitive
D) social learning

Evolutionary Theory

A scientific theory that explains the diversity of life on Earth by processes such as natural selection, descent with modification, and genetic variation over generations.

Ecological

Pertaining to the study of organisms in relation to each other and to their physical surroundings.

Social Cognitive

Pertaining to the understanding of social behaviors and cognition, emphasizing the role of observational learning, imitation, and modeling.