Which of the following is an example of a counterfactual reasoning problem?
If all fire trucks are red, and my truck is red, then my truck is a fire truck.
If I had decided to become a firefighter instead of professor, then I would be in better physical conditioning.
If there are five firefighters and seven police officers in a room and two people walk out of the room, what is the probability that one is a firefighter and the other is a police officer?
Firefighter is to water hose as police officer is to ______?