Which of the following taxonomic categories contains the maximum number of organisms?

Match column-$I$ (Biological name) with column-$II$ (Class) and choose the correct option.

Column-$I$ (Biological name)	Column-$II$ (Class)
$A$. Homo sapiens	$I$. Dicotyledonae
$B$. Musca domestica	$II$. Mammalia
$C$. Mangifera indica	$III$. Monocotyledonae
$D$. Triticum aestivum	$IV$. Insecta

What is a taxonomic category?

Which of the following $statement(s)$ is/are not correct?
$(i)$ Genus comprises a group of related species which has more characters in common in comparison to species of other genera.
$(ii)$ Three different genera such as $Solanum$,$Datura$ and $Petunia$ are placed in the family $Malvaceae$.
$(iii)$ In case of plants,classes with a few similar characters are assigned to a higher category called phylum.

In the given diagram,what do the labeled parts $P$ and $Q$ represent respectively?

Kingdom

$\uparrow$

$P$

$\uparrow$

Class

$\uparrow$

Order

$\uparrow$

$Q$

The correct sequence of taxonomic categories is