What is the Ka'aba?

A. an Islamic deity

B. a Muslim pilgrim

C. a book of Sharia laws

D. an ancient stone temple

D. an ancient stone temple

Explanation:

The Ka'aba is the most sacred site in Islam. It is located in the center of the most important mosque of this religion, in the city of Mecca, which is one of the three most sacred places in Islam. The Ka'aba is actually a very large black stone, and its origin is still not known. This large rock has been a sacred site much earlier than the emergence of Islam, thus it is actually a pagan site that was worshiped in ancient times. Weirdly enough the Islam has accepted it and made it its most sacred site despite this religion being very hostile toward other religions and pagan traditions and sites.