What is the family of $Homo$ $sapiens$?

Establishing relationships in higher taxonomic categories becomes more complex because -

Refer to the botanical name of wheat $Triticum\ aestivum$ and identify the statement which correctly describes it.

$A :$ Panthera is a polytypic genus.
$R :$ Panthera has specific epithets like leo,tigris,pardus.

Arrange the following taxonomic categories in ascending order.
$(a)$ Genus
$(b)$ Class
$(c)$ Order
$(d)$ Phylum
$(e)$ Family
$(f)$ Kingdom
$(g)$ Species
Choose the correct answer from the options given below:

Statement $P$: The nomenclature of an organism is done by two names.
Statement $Q$: The species name is written in small letters.