Terrance is experiencing hypothermia. What MOST likely happened to Terrance?

Hypothermia occurs when the body loses heat faster than it can produce it, causing its temperature to drop dangerously low. Swimming in cold water can quickly remove body heat, so Terrance most likely swam in cold water. Not drinking enough water can cause dehydration, while running in extreme heat can cause heat-related illness.

AI-written and checked against the verified answer.