It would be D. The Pelvic Cavity
Because the thoracic cavity is your chest area, the spinal cavity has to do with your spinal cord and the cranial has to do with your brain.
Some methods of progressive resistance exercise used to improve muscle fitness would be to increase the weight you lift. Do the same amount of reps and sets each week along with that but only increase your weight percentage by 2 or 10 of your RM load at a time. Don’t go overboard.
I would tell them to tell a trusted adult and use a helpline like nsvrc.org as a resource. Be there to support them during the aftermath as it will take a toll on their mental health.
