How can oats be fed to horses?

Oats can be fed to horses in various forms, providing flexibility based on the horse's needs and preferences. The correct response highlights that oats can be offered whole, bruised, crushed, crimped, or rolled. Feeding oats in different preparations can influence their digestibility and palatability.

Whole oats are the most intact form and may require more chewing, promoting dental health. Bruised oats have been mechanically damaged to expose more of their nutritional content, making them easier to digest. Crushed or rolled oats are processed to break down the grain's outer shell, enhancing digestibility and nutrient absorption. Each of these forms can be valuable for horses depending on their individual requirements, such as age or health condition.

The other responses limit the feeding methods to one form, which does not recognize that processing oats can improve their digestibility and availability of nutrients for horses. Therefore, the range of options in the correct answer encompasses the versatility required when feeding oats to meet the dietary needs of different horses.