Which federal state is Saxony?

EDITORIAL LEARNING AID

Why is this answer correct?

Saxony lies in the east of Germany and borders Poland and the Czech Republic; on the map in the question catalogue it bears the number 4. The numbers 1 to 3 designate other federal states in other positions on the map.

Far in the east, on Poland and the Czech Republic: Saxony, number 4.

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