Catalysts in the following reactions are:
$(I) CH_3COOCH_{3(l)} + H_2O_{(l)} \rightarrow CH_3COOH_{(aq)} + CH_3OH_{(l)}$
$(II) 2SO_{2(g)} + O_{2(g)} \rightarrow 2SO_{3(g)}$ (Contact Process)
$(III) 2SO_{2(g)} + O_{2(g)} \rightarrow 2SO_{3(g)}$ (Lead Chamber Process)
$(IV) N_{2(g)} + 3H_{2(g)} \rightarrow 2NH_{3(g)}$ (Haber Process)

• A
  $HCl_{(l)}, Pt_{(s)}, NO_{(g)}$ and $Fe_{(s)}$
• B
  $HCl_{(l)}, NO_{(g)}, Pt_{(s)}$ and $Fe_{(s)}$
• C
  $HCl_{(l)}, Ni_{(s)}, NO_{(g)}$ and $Fe_{(s)}$
• D
  $HCl_{(l)}, Pt_{(s)}, N_2O_{(g)}$ and $Fe_{(s)}$