What happens next?

How to do reverse crunches
Lie flat on your back.
Fully extend your legs, with your toes pointing upward and keeping your gaze focused on the ceiling. Your body should form a straight line from head to toe.

Available choices: (a). Lift the dumbbells as high as you can. Try to lift each dumbbell one at a time.. (b). Relax your shoulders and neck to minimize the tension in your upper body. Stretching out on a lightly cushioned surface like a yoga mat or a carpeted section of the floor can make performing the exercise more comfortable.. (c). Keep your abs tight while preparing for your crunches. Contract and uncoil your muscles as you squat over your back.. (d). Your body should be straight without going too far, and your body should be in a complete circle. Try not to have any discomfort when you start a routine..
(b).