In response to requests made by the dairy industry, the government is considering whether to approve the synthetic hormone BST for use in dairy cows. BST increases milk production but also leads to recurring udder inflammation, decreased fertility, and symptoms of stress in cows who receive the hormone. All of these problems can be kept under control with constant veterinary care, but such levels of veterinary help would cost big farms far less per cow than they would small farms. If the statements above are true, which one of the following claims is most strongly supported by them? ['At the present time milk from cows raised on small farms is safer to drink than milk from cows raised on big farms.', 'The proportion of cows that suffer from udder inflammation, decreased fertility, and symptoms of stress is currently greater on big dairy farms than on small ones.', 'Owners of big farms stand to gain more from government approval of BST than do owners of small farms.', 'The government is unlikely to approve the synthetic hormone BST for use in cows.']