In what way did descartes's philosophy of science challenge medieval views?

a.)descartes said that god could be found and analyzed in the same way that a machine could be

b.)descartes emphasized the role of doubt, while medieval thinkers emphasized the role of faith

c.)descartes rejected religious belief and said that the visible world is the only world that exists

d.)descartes believed faith was the only path th truth, while medieval thinkers rejected the bible