Can somebody please respond with the answer with explanation for following SC? I can't figure it out: 32. A study commissioned by the Department of Agriculture showed that if calves exercise and associated with other calves, they will require less medication and gain weight quicker than do those ra...

Hi Guys, really struggling to understand the face-off between "D" and "E" . Could anyone explain this differently. Also isn't the second part of "E" wrong in the sense : It is well known in the supermarket industry that how items are placed on shelves and the frequency ...