Write the next sentence in the following story.

How to measure reach
Stand upright with your back as close as possible to a wall.
Reach is conventionally measured with your back to the wall, but if this causes you difficulty you can always turn around and stand with your toes and the front of your torso against the wall.
Spread both arms straight out, palms facing away from the wall, fingers together.

Options are: I. To get an accurate measurement, your arms must be completely horizontal. Scoot to 1 side or the other so the tips of the fingers of 1 hand are against a corner or other obvious mark. II. The top of the palm should be relaxed and aligned with the floor. On the opposite side of the palm are the arm pads. III. Take a deep breath, being mindful of how you are feeling. This is a crucial measurement taken when measuring personal strength-if you are overweight or obese, you are at greater risk of developing foot abnormalities. IV. Your arms should form the " l " shape and your fingers should form a " l " shape. Your palms should face away from the wall.. The answer should be
I.