Muhammad's teachings a. accepted polygymy, but permitted men to take only one wife. b. required all Muslims to follow the Six Suras and the Seven Pillars. c. were propagated in Greek to make them more understandable in the non-Arab world. d. stressed that Islam was not just a religion but also a way of life. e. were entirely theological with almost no ethical nor moral aspects.

d. Stressed that Islam was not just a religion but also a way of life.

Explanation:

Prophet Muhammad was the founder of the Islam religion. He was also a political leader who believed in the presence of a single god.

His teachings became the basis for the Islamic/ Muslim religion. One of his teachings was that he stressed the importance of Islam not only as a religion but also as a way of life. He also gave "the Five Pillars of Islam" which include the acceptance of one God, giving of alms to the poor, fasting, praying, and also a pilgrimage to Meca.

Thus, the correct answer is option d.

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