Final answer:
Option (B), Repeated periods when a person stops breathing during sleep for 10 seconds or longer is known as sleep apnea, which can cause significant fatigue and health issues.
Step-by-step explanation:
Repeated periods during sleep when a person stops breathing for 10 seconds or longer is known as sleep apnea. Sleep apnea is characterized by such pauses in breathing, often because of a physical blockage of airflow during sleep.
People with sleep apnea may experience increased fatigue due to the disruptive nature of the breathing pauses and may not be aware of their condition, as they do not fully awaken to remember the interruptions in sleep. It is advisable for those who snore loudly or experience gasps for air while sleeping to be checked for sleep apnea.