Which of the following are ways in which relationships between advertisers and the media are changing:

a.Advertisers may withhold advertising dollars inan attempt to control editorial decisions and gain favorable coverage

b.Advertisers are financing production and developing content for programming

c.The use of advertorials (that look like editorial content) written by advertising copywriters and PR specialists is increasing

d.Product placement is becoming more prevalent in movies, television shoes, the editorial content of print media, and in video games

e.all the above