Please choose the correct solution to the question: Learn how to do a proper stomach crunch.

Solution1: 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.

Solution2: 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 format: solution1/solution2
Answer: solution2