According to Food and Health Survey: Consumer Attitudes Toward Food, Nutrition and Health (IFIC 2007), what is the greatest influence that causes Americans to make a change in their diet?

answer: c

explanation:

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.