Islam is the predominant religion in which region?

• A. North Africa
• B. East Asia
• C. Northern Europe
• D. South America

Answer: (A)

Islam spread across North Africa in the early centuries after its emergence, especially through Arab expansion in the 7th century. Over time, the majority of people in countries like Morocco, Algeria, Tunisia, Libya, Egypt, and Sudan adopted Islam, so the region today has a Muslim-majority population. That historical pattern is why North Africa is the region where Islam is predominant. By contrast, East Asia is mostly composed of Buddhist, Confucian, and secular traditions; Northern Europe is largely Christian or secular; and South America is predominantly Christian, so those regions aren’t where Islam remains the majority.