(i) Forebrain as the thinking part: Correct. The forebrain (specifically the cerebrum) is the main thinking part of the brain. It is responsible for complex functions like reasoning and logic.(ii) Sensory centers in the forebrain: Correct. The forebrain contains specialized areas for interpreting sensory information such as smell, hearing, sight, and the storage of memory.(iii) Medulla functions: Correct. The medulla oblongata, located in the hindbrain, controls involuntary actions that are crucial for survival, including blood pressure, salivation, and vomiting.(iv) Cerebellum and posture: Incorrect. This statement is false because the cerebellum is the primary part of the brain responsible for maintaining the posture, equilibrium, and balance of the body.