Final answer:
In Islam, Muhammad taught that there is only one God, and that the revelations given to Judaism and Christianity were valid but became distorted by man over time.
Step-by-step explanation:
Muhammad taught the belief that there is only one God and believed that the other two Semitic religions, Judaism and Christianity, were C. Valid revelations from God but were distorted by man.
According to the teachings of Islam, Muslims worship the same God as those in the Jewish and Christian faiths, recognizing important messengers such as Abraham, Moses, and Jesus as prophets, though not divine. Islam considers its holy text, the Qur'an, to be the uncorrupted version of the universal truths revealed by Allah, which had been altered over time in other traditions. Muhammad, viewed by Muslims as the final prophet in a long list, delivered the definitive version of God's will, after which no other prophets would come.