Answer:
Correct answer is D: the final revelations of Allah were given to Muhammad.
Explanation:
Option A is not correct as Muslims believe that Allah revealed himself through many prophets among which we have the mentioned to.
Option B is not correct as according to Muslims there is only one God.
Option C is not correct as Muhammad is a prophet, not son of Allah.
Option D is correct as Muhammed was the last on the line of God's prophets whose task was to spread the word of God.
