What was the objective of Ferdinand and Isabella during the Reconquista?

The correct answer, which focuses on the Muslim and Jewish expulsion from Spain, reflects Ferdinand and Isabella's main goal during the Reconquista, which was the campaign to reclaim the Iberian Peninsula from Muslim rule. The Reconquista was completed in 1492 with the conquest of Granada, the last Muslim stronghold in Spain. Ferdinand and Isabella aimed not only to unite Spain under Christian rule but also to ensure religious uniformity. This included the expulsion of Muslims and Jews who did not convert to Christianity, culminating in the Alhambra Decree of 1492 that ordered the expulsion of Jews from Spain.

The other options do not accurately capture the primary objective during this period. Establishing trade routes did occur as a result of the Spanish exploration that followed, but it was not the primary focus of the Reconquista itself. Expansion into Africa was not a goal during the Reconquista; rather, it was part of Spain's later colonial ambitions. Increasing agricultural production was relevant to the overall economic conditions of Spain but was not a specific objective linked to the Reconquista, which was fundamentally about religious and territorial consolidation.