Which of the following could most likely create tort liability?
a. Paul pays Dave to mow Paul's lawn, but then Dave refuses to do so.
b. Dave is arrested on Paul's property when the police observe Dave handling a white substance that looks like cocaine.
c.Paul is injured when Dave's car slips out of gear while Dave is in the driver's seat and waiting for Paul to load something in the trunk, then get in the car with Dave.
d.Both A and C create tort liability.