What was the Reconquista?
A( the most common trade route to the Indies, which was under Ottoman control
B) a 750-year effort by Christian kingdoms to expand across the Iberian Peninsula and expel Muslim Moorish states
C) a plan by Ferdinand and Isabella to spread Christianity to non-Christian lands, excluding areas with predominantly Muslim populations
D) Columbus' plan to sail westward to reach the Indies, which was modified from a plan by Marco Polo