Match the following columns:

Column-$I$	Column-$II$
$P$. Aspergillus niger	$I$. Acetic acid
$Q$. Acetobacter aceti	$II$. Citric acid
$R$. Clostridium butylicum	$III$. Butyric acid
$S$. Lactobacillus	$IV$. Lactic acid

• A
  $(P-I), (Q-II), (R-III), (S-IV)$
• B
  $(P-II), (Q-I), (R-III), (S-IV)$
• C
  $(P-II), (Q-II), (R-IV), (S-III)$
• D
  $(P-III), (Q-II), (R-IV), (S-I)$