The provides rules and guidelines for the medical buisnesses. so A is your answer
Way different but sorta the same it’s really not bad it’s slightly less fun but I still prefer online but a lot of my friends say it’s easier hope that helps
Answer: However, during exercise, many other muscles become important to respiration. During inspiration, the external intercostals raise the lower ribs up and out, increasing the lateral and anteroposterior dimensions of the thorax.