Which of the Following Is True of the Liability of a Common

Which of the following is true of the liability of a common carrier of people?

A) A common carrier is required to provide a seat for all its passengers.
B) An injury to a passenger by a fellow passenger does not subject a common carrier to liability for damages.
C) A common carrier has a responsibility to ensure the absolute safety of its passengers.
D) The liability of a common carrier for a passenger's safety begins when the passenger enters the waiting platform.