Answer:
C. He turned it into an Islamic holy site.
Explanation:
Already during the lifetime of Muhammad, Kaaba became considered as a holy Islamic site. After the flood of 600 CE, Muhammad himself participated in its reconstruction, and have also settled arguments between the clans of Mecca regarding this question - representative of which clan should set Black Stone cornerstone in place. To resolve this dispute, Muhammad instructed elders of all the clans of Mecca to carry the stone on a cloak together, while he have set it in place.
