Which of the following is used as a catalyst in the Fischer-Tropsch process for the synthesis of gasoline?

Which of the following catalysts is used in the contact process for the industrial production of sulfuric acid from $SO_2$ and $O_2$ (air)?

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)

According to the adsorption theory of catalysis,the rate of reaction increases because:

Match the Column-$I$ with Column-$II$ and mark the appropriate choice.

Column-$I$	Column-$II$
$A. V_2O_5$	$i. \text{Conversion of } SO_2 \text{ to } SO_3$
$B. Ni$	$ii. \text{Hydrogenation of oils}$
$C. MnO_2$	$iii. \text{Preparation of } O_2 \text{ from } KClO_3$
$D. Fe$	$iv. \text{Haber's process}$

The catalyst used in the hydrogenation of oils is: