Match the following columns and select the correct option:
Column $I$ Column $II$
$(a)$ Pneumotaxic Centre $(i)$ Alveoli
$(b)$ $O_{2}$ Dissociation curve $(ii)$ Pons region of brain
$(c)$ Carbonic Anhydrase $(iii)$ Haemoglobin
$(d)$ Primary site of exchange of gases $(iv)$ $R.B.C.$

  • A
    $(a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)$
  • B
    $(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)$
  • C
    $(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)$
  • D
    $(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)$

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