01 What was an important step toward economic unity in German-speaking regions?
Answer and explanation
Correct answer: A. Formation of the customs union
Explanation: The governing concept is the Zollverein, or customs union. Before its formation, German-speaking states had internal customs barriers that slowed trade and increased costs. The union removed or reduced many of these barriers and connected regional markets, making economic cooperation easier. Thus option A is correct. The other options would damage society and production and have no connection with economic integration.