Which of the following is a common symptom of a ruptured ligament in the knee?

Swelling is a common symptom of a ruptured ligament in the knee. When a ligament tears, it can cause bleeding and inflammation in the surrounding tissues, leading to an accumulation of fluid in the knee joint. This swelling is often accompanied by pain and a reduced range of motion, making it a clear indicator of a ligament injury.

Other symptoms associated with a ruptured ligament may include instability in the knee, difficulty bearing weight, and a popping sound at the moment of injury. However, swelling is typically one of the first noticeable signs following the injury.