The state capital of Saarland is called …

EDITORIAL LEARNING AID

Why is this answer correct?

Saarbrücken is the state capital of Saarland; the state parliament and the state government have their seat there. Neunkirchen, Homburg and Völklingen are other towns in the state, but not the capital.

Saarbrücken: state parliament, government, river Saar.

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