The Reconquista was a prolonged process in Iberia in which o A. Catholic rulers extended their control over the entire peninsula.
B. Islamic kingdoms in the south of Spain spread northward.
C. Jewish immigrants from North Africa fled to Spanish cities.
D. Portuguese kings created their own kingdom out of Spanish land.

A.

Explanation:

The Reconquista was the period of time between 711–1492 in the history of the Iberian Peninsula.

In the Reconquista time period catholic rulers extended their rules throughout the peninsula, and muslims and jews were ordered to convert into Catholicism. At the end of this time period all Iberian territories was taken by catholics rulers.

Hence, the correct option is A.

the indians crossed artificial boundaries, setting the stage for conflict