01 What mainly contributed to the rise of new commercial classes in Europe?
Answer and explanation
Correct answer: A. Expansion of production, industry, and trade
Explanation: The expansion of production, industry, and trade created markets and opportunities for merchants, industrialists, financiers, and professionals. These groups accumulated wealth through economic activity and helped form new commercial and middle classes, making option A correct. Closing markets or ending education would restrict such growth, while agriculture and the rural economy did not completely disappear.