Explanation:
Ritual such as praying and offering were provided to gods to gain their favor.
Formal religious practise centered parahons, the ruler of Egypt, believed to posses divine power by virtue of their position.
They acted as intermediaries between the people and the gods, and were obligated to sustain the god through rituals and offerings so that they could maintain Ma' at , the order of the cosmos and repel Isfet , which was choas.
I would definitely go with C. a topic sentence. While A. is never a bad idea, essay paragraphs tend to get marked as off topic if there is not a topic sentence. Hope this is helpful!
The answer is A..><span>Test it out before you begin</span>