Which minister does Baden-Württemberg not have?

EDITORIAL LEARNING AID

Why is this answer correct?

Under Article 32(1) of the Basic Law, the conduct of relations with foreign states is a matter for the federal government; that is why a federal state has no foreign minister. Baden-Württemberg does have finance, justice and interior ministries, because the states have their own responsibilities there.

Foreign policy is made only by the federal government, never by a state.

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