1. Which of the following statements is true about the brain? (i) The main thinking part of the brain is the hindbrain (ii) Centres of hearing, smell, memory, sight etc., are located in the forebrain. (iii) Involuntary actions like salivation, vomiting, and blood pressure are controlled by the medulla in the hindbrain (iv) Cerebellum does not control the posture and balance of the body (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii) and (iii) (iii) and (iv)