Which of the following is/are the advantage/s of hydroponics?

Mention the No. of given physiological activities of plant have been essentially controlled by Zinc, Boron, Sulphur and Calcium respectively

$a)$ Synthesis of auxin
$b)$ Photolysis of ${\mathrm{H}}_2\mathrm{O}$
$c)$ Methionine constituent
$d)$ Stability of protein
$e)$ Uptake of calcium
$f)$ Regulation of metabolic activities
$g)$Pollen germination
$h)$Cell elongation
$i)$ Cell differentiation

Match the following:

The correct match is

Choose the incorrect option for the following technique of plant production.

Hydroponics is the method of