Hello! The answer is A. The most important Islamic guidelines for Muslims are the five pillars: faith, prayer, concern for the needy, fasting and the pilgrimage to Mecca for those who can carry it out. These are the norms that govern the life and behavior of practicing Muslims.
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Roman concrete is very similar to what we use today. It was used to build structures and many buildings. It was revolutionary at the time as not many things were made of something such a concrete. The Romans proved to be much more advanced than other people and a leader in the world at the time.
Native American culture did not influence Latin American culture.