Jack Is Running on an Icy and Unsalted Sidewalk

Jack is running on an icy and unsalted sidewalk. He slips and falls and decides to sue the Condominium Corporation whose responsibility it was to salt the sidewalk. The Condominium Corporation may rely on the defence of

A) comparative negligence.
B) joint negligence on the part of Jack.
C) reduction of damages.
D) contributory negligence on the part of Jack.
E) joint and several liability on the part of Jack.