1. Help your friend rest their ankle, don't let them put pressure on it.
2. Put ice on the ankle to prevent swelling. Make sure you used a paper towel so that the ice isn't on their bare skin.
3. Immobilize and support the injury.
4. Elevate the ankle above the waist or heart as needed.
Decomposition is the suffix
Because you are taking things that don't belong to you without asking.
I would say A. The three other choices could lead to its start.