Which of the following is a sign of severe airway obstruction?

Answer & Explanation

The correct answer is Option D: D) All of the above.

Severe airway obstruction is characterized by the inability to breathe effectively, leading to signs such as paradoxical breathing, high-pitched noises on inhalation (stridor), wheezing, and potentially cyanosis if oxygenation is compromised. A forceful cough can indicate a partial obstruction, but these other signs point to a more critical situation.