One of the five pillars of Skepticism called infinite regress ...

[SGallaher96]

One of the five pillars of Skepticism called infinite regress claimed that
 
 

a. the number series was not infinite, for we could imagine there to be a largest number.
  b. the world did not have a beginning but had always existed in the infinite past.
  c. every attempt to justify our conclusions will lead to an unending series of justifications.
  d. all arguments assume what we are trying to prove.

Question 2

The Pyrrhonian Skeptics criticized the Academic Skeptics because the latter
 
 

a. claimed that even though we do not have certainty, we can have beliefs that are probable.
  b. were too skeptical to the point that they were impractical.
  c. were skeptical not only about sense experience, but also about religion.
  d. believed that nothing is selfevident and nothing can be proved.

[karmakat49]

Answer to Question 1

c.

Answer to Question 2

a