Which of the following philosophies directly contributed to the start of the enlightenment in the 17th century?
o a. nietzsche's theory of nihilism, in which it is believed life has no meaning
o b. montesquieu's idea of dividing political power among several branches of government
o c. aquinas's arguments for the existence of god and his definitions of the nature of god
o d. hobbes's theory that all men are inherently evil and need a single all- powerful monarch to rule over them