Analyze the map below and answer the question that follows. A map of Muslim population in the Middle East, Russia, Europe, and Africa. The northern half of Africa, and the Middle East have a Muslim population of 50 percent and above. Russia, some middle African countries, and three countries in Europe have a Muslim population of 10 to 50 percent.
Image by Mohsin

According to the map above, which of the following statements is true?

A. The Middle East is the only region in the world with a large Muslim population.
B. Islam is the most commonly practiced religion in every Middle Eastern country.
C. The majority of people in the Middle East are Muslim.
D. Only one Middle Eastern country has a Muslim population of 50% and above.