The muscles that support your spine and keep your rib cage and spine stable are referred to as your muscles.

core

Explanation:

Core muscles are engaged in many daily activities, therefore it is very important to keep them strong. They are the most active muscle group of the body. They contain 29 pairs of muscles.

The core is used to stabilize the thorax. Women also use core muscles during delivery and labor.

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.

i would definitly say b : )