While taking a cruise, Jennifer was walking on the lido desk. John while runn ifer causing her to fall over the rail and into the water. The boat was docked a e$,$ but Jennifer did not know how to swim and struggled to stay afloat. Billy, an senger$,$ was a lifeguard by trade. He saw Jennifer struggling but decided to jum whirlpool and relax. John knew he couldn't swim either so he decided to keep $r$ ty$,$ a elderly passenger, saw Jennifer in the water and quickly threw her a life raf cortunately, she didn't have the strength to pull her on board and let the rope go$.$ ise ship captain then ordered his divers to jump in and rescue Jennifer. Of the owing parties, who had no duty to assist Jennifer:

a$.$ John

b$.$ Billy

c$.$ Betty

d$.$ The cruise ship

John invited his friend George to accompany him to a Miami Heat basketball game