Which higher category comes right above 'Order' in the taxonomic hierarchy?

Correct answer: Class

Correct answer: A, Class. In the usual hierarchy from lower to higher rank, the sequence is species, genus, family, order, class, phylum or division, kingdom, and domain. Therefore, the rank immediately above Order is Class. Option A is correct. Option B, Family, is immediately below Order, not above it. Option C, Phylum, is above Class, but it is not the rank directly above Order. Option D, Kingdom, is also higher than Order, but several ranks lie between them, so it is not the immediate next category. A simple way to solve the question is to write the neighboring part of the sequence: Family → Order → Class. Memory cue: “Family comes before Order; Class comes after Order” when moving upward from lower to higher categories.