The correct answer is option B, kingdom→phylum→class→order→family→genus→species
Reason:
There are basically seven orders of classification in Linnaeus's Classification System (in present time) arranged in descending order
Kingdom→phylum→class→order→family→genus→species
The Domain is the largest and most inclusive group and consists of organisms that share few characteristics while the species is the smallest and most exclusive group and consists of organism that possess similarity up to an extent where they can breed among themselves to produce offsprings.