Which one of the following enzymes contains $Mn$ (manganese) metallic ion as a prosthetic group?

Match the following columns:

Column-$I$ (Enzymes)	Column-$II$ (Cofactors/Activators)
$P$. Catalase	$I$. Molybdenum
$Q$. Carboxylase	$II$. Zinc
$R$. Nitrogenase,Nitrate reductase	$III$. Iron

Select the correct pair of $X$ and $Y$.
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Column $X$	Column $Y$
$(1)$ Phosphatase enzyme	$(P)$ Molybdenum
$(2)$ Tyrosinase	$(Q)$ Fat
$(3)$ Intestinal enzyme	$(R)$ Copper
$(4)$ Carbonic anhydrase	$(S)$ Manganese
$(5)$ Glucose phosphatase	$(T)$ Zinc

Certain vitamin $B$ acts as

With reference to enzymes, which one of the following statements is true?

Which one of the following metallic ions does not occur as a prosthetic group in any enzyme?