According to muslim beliefs, why did muhammad become a prophet?

he was born as a prophet when allah decided that he was the last prophet in islam. The prophet was blessed with knowledge and the quran to let other know about islam and to spread the word. The prophet muhammad was very kind and in the quran it says that he was handsome when he passed by anyone he would great them and the woman on the streets cutting up veggies would actually cut their fingers at the sight of the prophet. In the quran it also mentions that he had a long beard and until now people can see the hair from his beard, in a small area in istanbul, turkey. The prophet muhammad was known to be the best prophet in islam. Hope this helps please mark me as brainliest.