the Wahhabi movement in Arabia was a threat to the Ottoman Empire because It’s members rejected ottoman theology and law because they wanted to return to Muhamed‘s original teachings. Option C is correct.
The Wahhabi movement arised from the scholarship and preaching of Muhammad ibn Abd al Wahhab, a scholar of Islamic jurisprudence who had studied in Mesopotamia and the Hijaz before returning to his native Najd to preach and spread his message of Islamic reform.