Match the contents of List-$I$ with List-$II$:

List-$I$	List-$II$
$A$. Bioreactors	$(i)$ Insulin produced by rDNA technology
$B$. Downstream processing	$(ii)$ Vessels which convert raw material into specific product
$C$. Recombinant protein	$(iii)$ Detect mutated genes in suspected cancer patient
$D$. $PCR$	$(iv)$ Involves separation and purification

• A
  $A-i, B-ii, C-iv, D-iii$
• B
  $A-ii, B-i, C-iii, D-iv$
• C
  $A-ii, B-iv, C-i, D-iii$
• D
  $A-iv, B-ii, C-iii, D-i$