The correct option is A Domain
A domain is a category above the kingdom, like a super kingdom which has similar kingdoms.
The division is the next level of taxonomic group after a kingdom.
Grade is a taxon that consists of members that share common characteristics, but have no phylogenetic connection.
Deme is a group of organisms that belong to the same taxonomic group. It is the group of organisms which interbreed with each other and share a gene pool.