if you mean the body her thighs and of you mean fitness wise it would be running
It pumps the blood in and out of the heart. If I remember right I think that’s it.
To be honest I think it is B. Static Stretch is used to stretch muscles when the body is at rest.
There's many options for this but what i have found is the best source for your calcium is yogurt it helps in many ways.
1)30% of your calcium
2)20% of vitamin D
other options-
milk, cheese, eggs, salmon, and spinach