The is considered the seat of complex thought. a. forebrain b. cerebrum c. cerebellum d. hypothalamus

B. cerebrum is the correct answer

The correct option is B

The Brain is an organ that centralizes the activity of the nervous system and exists in most animals. The brain is located in the head; usually, near the main sense organs such as vision, hearing, balance, taste and smell. During the early stages of psychology, it was believed that the mind had to separate from the brain. However, later, scientists conducted experiments that came to determine that the mind was a component in brain functioning, by the expression of certain behaviors based on their external environment and the development of their body. The mechanisms by which brain activity gives rise to consciousness and thought are very difficult to understand: despite the many and rapid scientific advances, much about how the brain works remains a mystery

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i think the answer is b.