Which group of vitamins is fat-soluble?

Which vitamins are water-soluble?

Select the correct match for $X$ and $Y$.

Column $X$	Column $Y$
$(1)$ Starch	$(P)$ Found in animal skeletal tissues
$(2)$ Glycogen	$(Q)$ Stored food form in plants
$(3)$ Chitin	$(R)$ Provides strength in sclerenchyma
$(4)$ Lignin	$(S)$ Stored food form in animals

Assertion $A$: Living organisms obtain various molecules and elements from their environment.
Reason $R$: Living organisms synthesize components essential for their body.
Which option is correct for Assertion $A$ and Reason $R$?

$P$: Lake or sea water does not freeze completely.
$Q$: The latent heat of water is very high.

To a living organism,which of the following has the greater amount of available energy per molecule?