What was rené descartes' contribution to the scientific revolution? a. he used mathematics to prove that the earth revolves around the sun. b. he introduced the theory of universal gravitation. c. he wrote discourse on the method of rightly conducting the reason and seeking truth in the sciences. d. he said that mathematics could be used to explain everything in nature.

The answer is letter c. He wrote Discourse on the Method of rightly Conducting the Reason and Seeking truth in the Sciences.

Rene Descartes is always considered as the first modern philosopher. His touchstone of the scientific method was on his first publication, Discourse on Method in the year 1637.  On this publication, the ways on how scientific study should be done to achieve the utmost clarity is scribed by testing the hypotheses using deductive way of reasoning.