What is the collective term for the 83-plus territorial units—including republics, krais, oblasts, cities of federal significance, an autonomous oblast, and autonomous okrugs—that make up the federation?
AGuberniyas
BMunicipal districts
CRayons
DFederal subjects✓
Federal subjects (субъекты федерации) vary in autonomy; republics have their own constitutions and official languages alongside the federal language, while oblasts and krais have charters.