Knee raises work the obliques and hip flexors Wall sits work the glutes and the core Lunges work the calves, quads, hamstrings, and back muscles Legs lifts work the glutes, and lower abdominal as well as obliques Heel raises work your calves Steps up work your quads, hamstrings, and glutes Squats work the glutes, Maximus, minimus Explanation: I’m a body builder
I believe the best choice will be A because training in cardio will burn the most calories and will help him get to where his body has a healthy composition and then the flexibility exercises just add on to it because it will relieve some stress off of the body.