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.
He founded the meatpacking company "Armour and Company" in Chicago in 1867, which matches the American businessman and 19th century parts of your question. I hope this helps!
