. . . . . . . . theory is that "much of man's behaviour is determined by innate instincts that are largely unconscious".

Solution(By Examveda Team)

The correct answer is option C. Freud's theory.

Freud's theory posits that "much of man's behavior is determined by innate instincts that are largely unconscious." This theory is known as psychoanalytic theory, which was developed by Sigmund Freud, a prominent figure in the field of psychology.

According to Freud, human behavior is influenced by unconscious motives, desires, and instincts that are rooted in the unconscious mind. He proposed that the mind consists of three major components: the id, the ego, and the superego. The id represents the primitive and instinctual drives, seeking immediate gratification. The ego mediates between the id and the external world, striving to satisfy the id's desires in a socially acceptable manner. The superego represents internalized societal and moral standards, acting as a conscience.

Freud emphasized the significance of early childhood experiences and the role of unconscious conflicts and desires in shaping human behavior. He introduced concepts such as defense mechanisms (psychological strategies to cope with anxiety) and the psychosexual stages of development, which suggest that individuals pass through distinct stages related to their sexual and aggressive instincts.

Freud's psychoanalytic theory has had a significant influence on psychology and has sparked extensive debate and discussion. While some aspects of his theory have been criticized and revised over time, his ideas regarding the unconscious mind and the role of innate instincts have contributed to our understanding of human behavior.

Therefore, the correct answer is option C. Freud's theory, as it aligns with the idea that much of human behavior is determined by unconscious instincts.