The answer to the question is C.
Answer:
D. They travel to the holy city of Mecca.
Explanation:
The Hajj is an Islamic pilgrimage to Mecca, their holy city. Hajj literally means <em>"to set out for a place,"</em> or <em>"to attend a journey." </em>For all muslims, it is mandatory for them to have made the journey at least once during their life.
I hope this helped, have gr8 day!
I think it mean the separation of government into three branches in my opinion.