What type of injury is typically characterized as 'acute'?

An acute injury is typically characterized as one that occurs suddenly and often involves a specific event or trauma. This can include situations such as a fall, a sudden twist, or a direct blow to a body part, which leads to immediate pain or dysfunction. For example, a sprained ankle from twisting during a sports activity would be classified as an acute injury because it manifests abruptly.

In contrast, long-term conditions or repetitive stress conditions develop gradually over time due to ongoing stress and might not present with immediate symptoms. Chronic illnesses are ongoing and can last for long periods, usually characterized by long-term management rather than sudden onset. Thus, the distinction of acute injuries lies in their sudden nature, making option B the accurate identification of an acute injury type.