The correct answer is Thoracic Cavity
Step-by-step explanation:
In the human body, the thoracic cavity is located above the abdomen and below the neck. This cavity includes vital organs such as the lungs and the heart. Moreover, this cavity is surrounded by bones such as the ribs. Besides this, while driving the thoracic cavity is expected to be in front of the steering wheel because the steering wheel is always in front of the chest of the driver. Due to this, if William's body slammed into the steering wheel during the accident is likely this cavity was the one most affected due to its position.