Which of the following describes asphyxiation?

Asphyxiation refers to a condition where there is insufficient oxygen reaching the tissues, which often results in an inability to breathe normally. This can occur due to a variety of reasons, such as obstruction of the airway, choking, drowning, or other factors that prevent proper airflow. The hallmark of asphyxiation is the lack of adequate oxygen supply, leading to symptoms such as gasping, increased heart rate, confusion, or loss of consciousness. Recognizing that asphyxiation primarily affects the body's ability to perform the vital act of breathing underscores why this option accurately describes the condition.

The other options describe different medical conditions or issues related to respiration but do not specifically address the critical aspect of asphyxiation, which is the inability to breathe normally due to a lack of oxygen.