Which of the following statements are 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 posture and balance of the body.

• A
  $(i)$ and $(ii)$
• B
  $(i), (ii)$ and $(iii)$
• C
  $(ii)$ and $(iii)$
• D
  $(iii)$ and $(iv)$