Why is the fall of Constantinople considered influential for both knowledge and trade?

Correct answer: It increased migration of scholars and motivation to find new sea routes

Constantinople fell to the Ottoman Turks in 1453. The city had been an important centre connecting Europe and Asia, so its conquest affected established trade routes and strengthened Ottoman control over the eastern Mediterranean region. The event also encouraged many Greek-speaking scholars to move westward, carrying manuscripts and learning that influenced intellectual life in Europe.

Option A brings together both effects named in the question: movement of scholars and greater interest in finding alternative sea routes to Asian markets. The fall did not create the United Nations, restore the Roman Republic, or immediately begin World War I. Although historians debate how direct its role was in European exploration, the standard school-level explanation supports option A.