The religion of Afghanistan is

Islam
Buddhism
Hinduism
Christianity

The correct answer is Islam.

Islam is the official religion of Afghanistan. It is practiced by over 99% of the population. The majority of Afghans are Sunni Muslims, while a small minority are Shia Muslims.

Islam was introduced to Afghanistan in the 7th century by Arab conquerors. It quickly became the dominant religion, and has remained so ever since. Islam plays a major role in Afghan society and culture. It is the basis of the country’s legal system, and it shapes the way that Afghans live their lives.

Islam is a monotheistic religion that teaches that there is only one God, Allah. Muslims believe that Muhammad is the prophet of Allah, and that the Quran is the word of Allah. Muslims pray five times a day, and they fast during the month of Ramadan. They also give to charity and make a pilgrimage to Mecca, if they are able.

Islam has had a profound impact on Afghanistan. It has shaped the country’s history, culture, and society. It is the foundation of the country’s legal system, and it influences the way that Afghans live their lives.