Which one of the following is a common sign of smoke inhalation?

Shortness of breath is a common sign of smoke inhalation due to the irritants and toxic gases present in smoke that can damage the respiratory system. When smoke is inhaled, it can lead to inflammation of the airways, reduced lung function, and impaired gas exchange, resulting in difficulty breathing. This physiological response highlights the lungs' struggle to provide sufficient oxygen to the body, which can manifest as shortness of breath.

In contrast, dry throat is a symptom that might occur but is not as indicative of smoke inhalation compared to shortness of breath. Wet skin generally does not correlate with smoke inhalation and does not indicate respiratory distress. Increased stamina would not be a sign associated with smoke inhalation, as inhaling smoke typically leads to reduced respiratory efficiency and lack of oxygen, not an enhancement of physical capabilities.