What is the human process used to make sense of things?

If you are doing CK12 like i am, then the answer is reasoning. I had to keep thinking about the potential answer after getting it wrong too

many times.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

i believe it would be c: tons.