Match these feed program management practices with the primary reason to use them. - Use nets, mangers, and feeders to feed hay. - Feed loose salt direct in feed and also free choice in housing areas. - Keep feed containers in a closed/latched feed room. - Store hay in a secure area out of the sun. A. ensures good hydration by meeting daily requirements B. prevents yellowing and loss of nutrients C. prevents horses gaining access D. minimizes waste and parasite transmission