An uninsured, distracted driver crashes into the two cars parked in Kate's driveway. When the driver backs away from the damaged cars, she rips the bumper off Kate's car. The bumper flies through the air and knocks down Kate's fence. What is the proximate cause of the damage to the fence?
A. The car crash
B. The location of the fence
C. The uninsured, distracted driver
D. The bumper