the organization which goal is to providing education on new farming techniques and calling the regulation of railroad and grain elevator rates is: B. the Interstate Commerce Commission
By the time when it's established, there were a lot of concerns regarding the danger that exist in railroad industries such as unsafe working condition or rate discrimination for people with different ethnicity or racial background. The interstate commerce omission is the one that erase those unfairness and transform the industry into a safer and less prejudiced.
The working class was going through a drought of money and the white collared class was essentially swimming in money. So th moral of the story is that the white collars were causing INEQUALITY OF WEALTH. Which is the answer.