The Jamestown colony had little food in the early years for multiple reasons:
1) Lack of knowledge regarding terrain- Considering that this was the first permanent English settlement, the colonists were unaware of the climate and the weather and how this would affect crops on a long term basis.
2) Conflicts with Native Americans- The establishment of the Jamestown colony was not well received by many Native American groups, as they viewed the English as enroaching on their territory. This limited what resources/where the colonists could travel.
Rene Descartes ( 1596 - 1650 ) was very important scientist. He invented the Cartesian coordinate system. He considered mathematics like the basis to all sciences. Descartes partially agreed with Copernicus` theory about the Heliocentric system. He had his theory - "theory of the vertex". because he was scared of the Catholic church, he didn`t totally agree with the Heliocentric system. He also had his "Method of doubt": Can`t be doubted = certainty = truth.
Answer: b. He proposed that through the use of reason and doubt individuals may arrive at understanding.