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.
The answer is sister chromatids split and four haploid daughter cells are formed. I tried putting in the other answer and it was wrong. Hope this helps!
