What is the most logical next event?

How to treat an injured rabbit's paw
Identify sore hocks.
Pododermatitis, also called sore hocks, is a common ailment among rabbits. This painful condition can be easily prevented with proper exercise and comfortable housing.

Possible answers:
[a]. By being kept warm and alive, the fungus at the joint is eliminated and no swelling remains. This is frequently the case in older rabbits..
[b]. The initial swelling or redness associated with the sore hock is usually vague. This will usually go away within the first few days..
[c]. Once the condition has set in, though, you'll need to take quick action to treat the injury. Leaving it untreated will lead to infections and further pain..
[d]. The skin and nails of a sore hock can become inflamed and burned. When pinching the hock, the injured paw often splits..
[c].