What is rage difference between B and E?

Hi @nivensDC, Thanks for the question! (B) tells us that farming practices can help improve living conditions of farm animals, and so is linking the well-being of animals to farming practices. (E) is linking maximizing of profits for dairy farmers (and not the wellbeing of animals) to having a concern for dairy cow’s environment, which isn’t quite the same as (B). In addition, (E) states that this concern is “the key” to maximizing profits on a dairy farm, which is strong language that the stimulus doesn’t use. Hope this helps! Feel free to ask any further questions that you might have.