The right answer is A.
There are simple exercises that allow you to have comfortable postures, whether standing, sitting or lying down. You will also have a completely different posture. In addition to the exercises, it is sometimes enough to simply think about the way one stands and possibly correct the position.
You have to improve your standing and walking position
Stand straight.
Use a wall to get a good position
Use strong but non-stretchable tape.
Tip your weight on tiptoe.
Walk like having a book on the top of your head.
Be well shod.
It is also necessary to improve one's sitting position.
Make sure you have a right-angle back with your thighs.
Have the legs and feet on a good position .
