The correct answer is B) the Iberian peninsula.
In the Iberian peninsula can be found most of the Muslim architecture.
Muslim or Islamic architecture is also called "Moorish" architecture. It can be found in many places in countries in the Iberian peninsula such as Portugal and Spain, and some parts of North Africa like Morocco. For instance, in Andalusia, Spain, there is one of the most beautiful examples of Moorish architecture in the city of Cordova: the Mezquite. There are many examples of Moorish architecture in those three places because the Moors lived in that region between 711 and 1492.