Which level of classification contains all the others

The correct answer should be Domain. All other taxonomic categories fall under the domain, even though there technically exists one more called life, but it is not considered so important because it differentiates between living organisms and non living things so nobody actually uses it anywhere.

Answer;

Domains

Explanation;

Domain is the largest group of classification that is used to classify organisms.

It is a taxonomic category above the kingdom level.

There are three domains, which are; domain Bacteria, domain Archaea, and domain Eukarya, which are the major categories of life.