Match the following pairs in Column-$I$ with their respective isomer types in Column-$II$.

Column-$I$	Column-$II$
$A$. Acetaldehyde,vinyl alcohol	$1$. Enantiomers
$B$. Eclipsed and staggered ethane	$2$. Tautomers
$C$. $(+)$$2$-butanol,$(-)$$2$-butanol	$3$. Chain isomers
$D$. Methyl-$n$-propylamine and diethylamine	$4$. Conformational isomers
	$5$. Metamers

• A
  $A-2, B-4, C-1, D-5$
• B
  $A-2, B-4, C-1, D-3$
• C
  $A-1, B-4, C-2, D-5$
• D
  $A-1, B-4, C-2, D-3$