When providing first aid for the broken bone pictured, what is an important consideration?

Immobilize the arm using the areas above and below the break.

Explanation:

I just took the test and it's the right answer, but it also makes sense because you should not push the bone back into the skin nor touch the ends of the bones. This is because the bones are now covered in bacteria. Immobilizing the break to prevent any further damage is the best option.

which ever one is showing doing the same exercise in time intervals such as 30 seconds or a minute several times.