I think the answer would be c
The diaphragm moves upward, making the chest cavity larger, and air flows in.
If the disease is communicable, it is contagious. If it is airborne, it is transferred through the air, as opposed to physical touch or blood-borne. Being in a confined space, such as an ambulance, with an airborne communicable disease means you have most definitely been exposed to it.
Answer:
muscular endurance is the ability