How did muhammad of mecca come to successfully spread his new religion islam across these arabian peninsula

Well, I already know this since I am Muslim and in the religion he is in Islam. Here's your answer.

He sent messages to people to tell them about Islam and shared the message to people.

The answer is C: "It helped to unify much of the Arabian peninsula under Islam"

answer; ///i do believe that the correct answer for the above is ( which states would be free and which states would have check first good

the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation.