Each category in the classification of organisms forms a .....

Which taxonomic category is formed by a group of related families?

Fill in the blanks $A$ and $B$ in the following taxonomic hierarchy:
Kingdom $\rightarrow$ Phylum $\rightarrow$ $[A]$ $\rightarrow$ Order $\rightarrow$ $[B]$

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.

Which of the following statements is correct regarding a species?

Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus.