What is the normal range for oxygen saturation levels?

The normal range for oxygen saturation levels is considered to be 95-100%. This range reflects the percentage of hemoglobin molecules in the blood that are saturated with oxygen. Maintaining oxygen saturation levels within this range is crucial for ensuring that the body's tissues receive adequate oxygen to function properly. Levels below 95% may indicate that the body is not receiving enough oxygen, which could lead to various health issues, while saturation levels above 100% are not typically possible since hemoglobin can only carry a certain amount of oxygen. Consequently, option C appropriately reflects the standard accepted medical guideline for healthy oxygen saturation levels.