The correct answer is B. Shi'ites
They believed that Muhammad's cousin and son-in-law, Ali. Opposite to this, Sunnis believed that his Caliph should lead the country.
It happened because the consuls only cared about their own personal wealth and not for the people. The senate got richer and richer while the people got poorer and poorer. It ended with the rise of the Empire and the rule of an Emperor. The disadvantage was that all of the power was in the hand of a single person and often the Roman emperors were tyrannical.
One of the reasons why stock bought on margin is considered a risky investment is because "Investors purchased the stocks with little cash down," meaning that they had to borrow the remained of the money.
