Bob carelessly leaves his truck 's motor running while he gets out to make a delivery. The transmission engages and the truck crashes into a nearby gas station pump, igniting a fire that spreads quickly to a construction site a block a way. A burned wall collapses onto a crane, which falls on and injures Carol who was shopping nearby. Which of the following is true?

Group of answer choices

Bob is the actual cause of Carol's injuries.

Bob is not the actual cause of Carol's injuries.

Bob is both the actual and proximate cause of Carol's injuries.

Bob is the proximate cause of Carol's injuries.