A Company Believes There Is a 20% Chance the File

A company believes there is a 20% chance the file modifications will be easy, a 40% chance that they will be moderately difficult and a 40% that they will be extremely difficult.Based on old files, modifications will be extensive or minor.Suppose the probabilities are as follows: P (Minor | Easy) = 0.80, P (Minor | Moderately Difficult)
= 0) 50 and P (Minor | Extremely Difficult) = 0.20.What is the probability that the difficulty of the file modifications and transfer will be extremely difficult given that the modifications required are minor?

A) 0.57
B) 0.20
C) 0.32
D) 0.44
E) 0.90