The answers is A. Hope it helps
The strength of endurance of a muscle depends on lots of things. One main thing that it depends on is a healthy diet. What you eat and drink has certain chemicals that are healthy for you that your body consumes to help strengthen your muscle and build stamina whereas if you put something bad in your body it will evidently weaken your muscles and stamina.
Hope that helps!
I am not sure i understand the question. but if it you are asking what i think you are the answer could be one o the following.
using protective gear, such as knee pads, helmet, and hang grips. having water bottle, knowing the directions to where you wish to go, and a reflective light on the back.
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