Match List-$I$ with List-$II$.

List-$I$	List-$II$
$A$. Sulphate $(> 500 \ ppm)$	$I$. Methemoglobinemia
$B$. Nitrate $(> 50 \ ppm)$	$II$. Brown mottling of teeth
$C$. Lead $(> 50 \ ppb)$	$III$. Laxative effect
$D$. Fluoride $(> 2 \ ppm)$	$IV$. Kidney damage

Choose the correct answer from the options given below.

• A
  $A-IV, B-I, C-II, D-III$
• B
  $A-III, B-I, C-IV, D-II$
• C
  $A-II, B-IV, C-I, D-III$
• D
  $A-II, B-IV, C-III, D-I$