What was a caliph's primary responsibility?

a.
provide food for people

b.
spread god's rule

c.
tolerate other religions

d.
find new trade routes

The Caliph's primary responsibility was to spread God's rule. This is why it is believed that the early caliphs saw themselves as ruling directly on behalf of God and that they did claim privileged authority. Caliphs took priority over rulings that a caliph, or political authority appointed or designated by caliph, such as a Sultan. Effectively, jurisprudence or fiqh was the preserve of professionally trained religious scholars, while administration and politics was the preserve of the caliph. Hope this Helps if its not B try C its close also with the answer.