Two animals $A$ and $B$ have similar morphological features and are fundamentally similar with each other,they must be treated as

Assertion $(A)$: The nomenclature of organisms should be done in the Latin language.
Reason $(R)$: In nomenclature,the first name should be the species and the second name should be the genus.

Match column-$I$ with column-$II$ 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

Which of the following options indicates a decrease in variations?

Identify the true statements from below $:-$
$(a)$ Convolvulaceae and Solanaceae belong to the same order
$(b)$ Animals,mammals,and dogs represent different taxa at same levels
$(c)$ Musca domestica is the scientific name of housefly
$(d)$ Taxonomic categories are distinct biological entities

What different criteria would you choose to classify people that you meet often?