Match the following columns:

Column-$I$	Column-$II$
$P$. Structural elements	$I$. $C, H, O, N$
$Q$. Energy-related chemical components	$II$. $Zn^{+2}, Mo, Mg^{+2}$
$R$. Elements involved in enzyme activation or inhibition	$III$. Potassium
$S$. Elements involved in osmotic potential	$IV$. Phosphorus, Magnesium

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