Answer:
i need points srry forgive me people
Explanation:
I think its B because you watch the bar lift and if the person needs help you need to be ready.
You can wear them if you have protective goggles on
The answer to your question is C. increased bone density - there are different ways to increase bone density, lifting weights or using weight machines,and jump rope are one of the few ways we can build up our bones in order to keep it strong.
