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

Mild airway obstruction is characterized by the victim's ability to maintain some level of airflow and respiratory function. When a person has a mild obstruction, they are typically still able to make sounds and breathe effectively, which is why this choice is the correct answer. This indicates that while their airway may be partially blocked, they have enough air passage to create noise and inhale and exhale, allowing for communication and awareness of the situation.

In cases of obstruction, if a person cannot respond, it usually suggests a more severe obstruction where airflow is significantly restricted, leading to unconsciousness or a lack of communication. Signs of panic can occur with various forms of distress, including mild obstruction, but the presence of sound and breath is a more definitive indicator of mild obstruction. Turning blue, or cyanosis, is a sign of critical oxygen deprivation, which occurs in cases of severe obstruction and indicates an inability to breathe adequately, further confirming that this is not reflective of a mild obstruction scenario. Thus, the ability to make sounds while breathing is a hallmark sign of a mild airway obstruction, confirming the given choice as correct.