Sandra Hired Jeff to Work as a Taxi Driver for Sandra.Jeff

Sandra hired Jeff to work as a taxi driver for Sandra.Jeff had a long criminal record for violent assaults,including three cases of vehicular homicide.However,Sandra was not aware of this and she does not check employees' criminal records.While Jeff was driving a passenger,Ben,they got involved in a heated argument.Jeff pulled Ben out of his car and hit him.Which of the following is true of this case?

A) Since Sandra was not aware of Jeff's criminal history,she will not be held liable for this incident.
B) Jeff was outside the scope of his employment,hence he is liable for this tort,and Sandra escapes liability.
C) Sandra is liable for the incident only under the vicarious liability doctrine.
D) Sandra is liable because of the direct liability doctrine.