Answer:
A. Retaking of Iberian peninsula from the Muslims is the correct answer.
Step-by-step explanation:
The series of wars and battles between the Muslim moors and christian kingdoms to control Iberian Peninsula is known as Reconquista. Iberian peninsula includes the countries of Spain and Portugal. Reconquista lasted from 718 to 1498, it began with the battle of Covadongs when king Pelayo of the Visigoths defeated the Muslim army in Alcama. Reconquista ended when Spain was united with the marriage of King Ferdinand of Aragon and Queen Isabella First of Castille.