An ad by the Tennessee Department of Tourist Development encouraging people to choose the state of Tennessee for their vacation destination was published in Southern Living magazine. The ad shows various scenic pictures of Tennessee and includes the slogan, "Tennessee sounds good to me." In this print ad, the source of the advertising message is:
A. the Tennessee Department of Tourist Development.
B. Southern Living magazine.
C. the people in the scenic pictures.
D. the slogan.
E. readers of the magazine.
Answer: A