Question: Learn how to do a proper stomach crunch.
Option 0: Lie on your front with your knees bent and feet flat on the floor, hip-width apart, slowly contract your abdominals, bringing your shoulder blades 2 inches off the floor and you are done.
Option 1: Lie on your back with your knees bent and feet flat on the floor, hip-width apart, slowly contract your abdominals, bringing your shoulder blades 2 inches off the floor and you are done.
Answer: 1