In Which of These Situations Would Public Relations Be the Best

In which of these situations would public relations be the best option?

A) Stacie just opened a new store and wants to advertise locally.
B) A company has been accused of condoning sexual harassment and wants to let the public know about its internal training on the topic.
C) A large manufacturer is expanding globally and needs to let its suppliers know about changes.
D) Nike has a new line of baseball shoes that has been endorsed by the World Series champions, the Boston Red Sox.
E) The mayor is running for reelection and wants to inform voters about the terrible things his opponent has done.