The correct option is C The society should be divided with class hierarchy.
The five pillars of Islam are:
1)There is only one God, that is Allah and Mohammad is his Prophet.
2)All Muslims must offer prayers, called namaz five times a day.
3)Believers must fast from sunrise to sunset throughout the holy month of ‘Ramzan’.
4)They must give Zakat, or alms, to the poor.
5)They must make a pilgrimage to Mecca at least once in their lifetime.
Islam religion preached brotherliness and unity. It never insisted to form social hierarchies.