Under Xerxes I, the Persian Empire became focused on: spreading a new system of writing.
tolerating many different religions.
defeating the Greek city-states.
reducing the power of the governors.

d: social contract theory

i beleive that d is the right answer

according to islamic belief there is only one god and muhammed is god´s messenger.

he was sent to introduce and instruct his people with god´s teachings : the 5 pillars of islamism. these are the five basic acts of islamic religious belief.

number one is the declaration of faith. this means there is only one god and one messenger.

number two is obligatory five prayers . number three is compulsory giving in order to achieve balance and encourage individual growth.

number five is fasting in the month of ramadan and the final number five pilgrimage to the mecca.