Final answer:
The angles of a horse's front and hind feet should generally be similar to ensure proper balance, although there may be individual variations within normal ranges for the horse.
Step-by-step explanation:
The question likely refers to the conformation of horse's feet, a topic that falls under Biology and equine studies. The requirements for the angles of a horse's front and hind feet can vary depending on the breed and the specific use of the horse (e.g., racing, jumping, dressage).
However, generally speaking, the angles of the horse's front feet should be somewhat similar to each other, and the same principle applies to both hind feet.
This is to ensure proper balance, gait, and overall health of the horse. Therefore, the answer to the question would most likely be (b) Must be identical or at least very similar.
It's important to mention that while horses within a breed might have standard angle ranges, each individual horse may have slight variations that are still within the range of 'normal' and healthy for that horse.