Which of these is a district (Landkreis) in Saxony?

EDITORIAL LEARNING AID

Why is this answer correct?

The Vogtlandkreis is one of the districts of the Free State of Saxony and lies in the south-west of the state, on the border with Bavaria and Thuringia. Altötting belongs to Bavaria, the Uckermark to Brandenburg and Nordfriesland to Schleswig-Holstein.

The Vogtland lies in south-west Saxony – hence Vogtlandkreis.

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