"Nation-State" Is a Problematic Term Because

"Nation-state" is a problematic term because

A) most states are comprised of more than one nation, which accounts for many problems in the modern international system.
B) all territorial units called "countries" comprise only one nation, so the term is unnecessary.
C) globalization has eroded all sense of national identity.
D) in the contemporary era no elected official ever uses the term, yet it lives on in textbooks.