Francis bacon, an english philosopher, believed scientists should
a. use inductive reasoning.
c. leave nature alone.
b. rely solely on the bible.
d. use chance to study nature.

a. use inductive reasoning.  

Explanation:

Francis Bacon was a natural English philosopher who used inductive reasoning in an attempt to improve the mistakes made by Aristotle, and is known to promote (scientific) method.

Bacon is most commonly known to advocate the inductive approach to science. He argued that there had been limited progress over time due to the fact that scholastic philosophers altered their conclusions about nature to meet the requirements of writing. Bacon outlined the principles of the method of inductive reasoning, while the term "method" dates back to Aristotle's times, Bacon was a breakthrough in the approach to science.  In other words, Bacon believed that scientists should use inductive reasoning.

a.) are both appointed for life