On a Foggy Night a Puts His Scooter in the Garage

On a foggy night A puts his scooter in the garage of B. On finding it, if B removes the scooter from the garage and puts it alongside the road then:

A) B has committed the tort of trespass to goods because he interfered with the property of another.
B) B has committed no tort because he acted in protection of his property.
C) B has committed no tort because he is not at fault.
D) B is liable as joint tort feasor.