What is Germany's full name?

EDITORIAL LEARNING AID

Why is this answer correct?

The official name of the state is Federal Republic of Germany, as laid down in Article 20 of the Basic Law. The other formulations are not state names: "federal state" describes the form of government, "federal states" the constituent states, and there is no "federal district".

Official name: Federal Republic of Germany.

This translation and explanation are editorial learning aids. The official German wording and answer key govern the examination.