Select all that apply.
christianity and islam:

have more than three billion followers between them
each have one main sect and then smaller divisions
are divided into sunni and shi'ite (islam) and catholic and orthodox (christian)
have the same forms of worship as they did in the middle ages
have already had conflict that was only exacerbated with the crusades

Explanation:

Christianity is one of the Abrahamic monotheistic religions; it is closely related to Islam and Judaism. It was developed based on the teachings of Jesus of Nazareth, whom Christians consider a prophet son of God.

Islam is also an Abrahamic monotheistic religion, they consider Muhammad as the last prophet sent by God, and they follow his teachings written in the Koran.

Both religions have millions of faithful throughout the world; however, despite having similar origins historically, they have had various problems and have faced wars.

Among the most famous are the crusades; These were a series of wars that were driven by the Catholic Church to recover the Holy Land, a region of the Middle East.

I hope this information can help you.

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.