Answer:
D) Integumentary system → skin cell → hair → sweat glands
Personal factors- heredity, age, sex, disability
I think you should stop and take a rest or a break. If the side stitch is really painful, then don't start running until it has stopped. Or you can walk it off so it might not get any more painful when you're resting.
To add on to what the other person said that is the WHO (world health organizations) definition of health :)
Mines already over thank god but sadly I got summer school :(
