Which of the following is a symptom of hypothermia?

The correct choice reflects a key symptom of hypothermia, which is characterized by the body's inability to maintain a normal temperature due to prolonged exposure to cold conditions. When someone experiences hypothermia, their body's temperature drops, leading to physiological changes that can affect breathing. Uncontrolled breathing can occur as the body's systems struggle to function properly in the cold, illustrating how severe the condition can be.

In contrast, the other symptoms mentioned are not associated with hypothermia. Excessive sweating and a rapid heart rate are more likely to be symptoms of heat-related illnesses or stress in warm conditions. Feeling overly warm contradicts the essence of hypothermia, where the body is losing heat, not retaining it. Understanding these symptoms is crucial for identifying and responding to hypothermia effectively.