Assume a firm works on a set large scale development projects, in which the learning curve theory can be utilized. The first project takes 200 days and the second project takes 180 days. Which of the following statements is correct
A - The third project takes 160 days
B - The fourth project takes 145.8 days
C - The fifth project takes 162 days
D - The eight project takes 131.2 days
E - None of them is correct