Which of the following are considered micronutrients?

Match List-$I$ with List-$II$:

List-$I$	List-$II$
$A$. Iron	$I$. Synthesis of auxin
$B$. Zinc	$II$. Component of nitrate reductase
$C$. Boron	$III$. Activator of catalase
$D$. Molybdenum	$IV$. Cell elongation and differentiation

Choose the correct answer from the options given below:

Which of the following minerals is not remobilized in plants?

$S$ - Statement: The presence of $Zn$ is essential for the activity of carbonic anhydrase.
$R$ - Reason: The presence of vanadium is essential for the activity of nitrogenase.

Select the odd one out from the following with respect to macronutrients.

The permeability of the cell membrane is determined by which mineral element?