How much air (in mL) does a quiet breath flow through the lungs?

A quiet breath typically involves the tidal volume, which is the volume of air that is inhaled or exhaled during normal breathing without any extra efforts. The average tidal volume in a healthy adult at rest is approximately 500 mL. This value represents the amount of air that enters the lungs with each quiet breath, making it a standard measurement in respiratory physiology. The choices provided reflect various volumes, but 500 mL is widely accepted in medical literature as the normal volume for a resting breath, which is why this choice is considered correct.