This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to do the crescent pose in yoga
Stand in mountain pose.
To prepare for crescent pose, you should begin by standing in mountain pose. Stand up straight, aligning your feet with your outer hips.

Possible answers:
* Lean forward slightly to then raise your arms on either side of your head, bent at the elbows, until you feel tension in your back. Raise your toes and keep your palms facing forward.;
* Your right foot should be stacked over your left and your right foot is planted on a chair or mat. Push up off of the chair, then lift your hips straight up.;
* Your feet should be in a 90 degree angle. Keep your neck flat with your chin slightly up, and your toes pointed forward.;
* Stack your rib cage over your pelvis to keep your spine straight. Make sure your hands are by your sides, with your palms facing either the front of the room or the sides of your body.;
The answer is:
Stack your rib cage over your pelvis to keep your spine straight. Make sure your hands are by your sides, with your palms facing either the front of the room or the sides of your body.