What is the typical oxygen saturation level in a healthy adult?

In healthy adults, the typical oxygen saturation level generally ranges from 95% to 100%. An oxygen saturation level of 95% or higher indicates that the body is receiving an adequate supply of oxygen, which is crucial for the proper functioning of organs and tissues. This range is considered normal because it demonstrates efficient oxygen transport from the lungs to the bloodstream and subsequently to the body's cells.

Saturation levels below 95% may indicate potential respiratory issues or inadequate oxygenation, which could be a cause for concern in clinical settings. Therefore, option C is the most accurate representation of a healthy adult's oxygen saturation level.