Psychologist who considered Aggression to be a basic human instinct:

Correct option is A

Sigmund Freud proposed that aggression is an innate instinct, part of the death instinct (Thanatos) in his later theory. He believed humans have a fundamental aggressive drive that must be channeled or sublimated. This contrasts with his earlier theory focusing primarily on libido (Eros/life instinct). Freud saw aggression as biologically rooted and universal.

Information Booster:
• Freud's dual instinct theory: Eros (life) and Thanatos (death)
• Thanatos includes self-destructive and outward aggressive impulses
• Aggression viewed as hydraulic model (builds up, needs release)
• Catharsis theory: releasing aggression reduces aggressive drive
• Influenced by World War I's violence
• Contrasts with social learning theory of aggression

Additional Knowledge:
• Option (B) B.F. Skinner: Behaviorist who saw aggression as learned through reinforcement
• Option (C) Abraham Maslow: Humanistic psychologist focusing on self-actualization, not instinctual aggression
• Option (D) Henri Tajfel: Social identity theorist, studied intergroup behavior, not instinctual aggression