As Europe and America Began to Industrialize, the Political Organizations

As Europe and America began to industrialize, the political organizations were transformed. Members of the middle class became economically powerful and were drawn to ideas of popular sovereignty. Popular sovereignty means that:

A) Kings and queens should retain ultimate political power.
B) People, rather than rulers, were the ultimate source of political authority.
C) What is trendy at the moment is the best way to run the economy.
D) Political power should be vested in the elite and upper classes, rather than the lower classes.
E) The only good dictator is a dead one.