TechGreen Is Launching a Line of Miniature Solar Chargers for Laptops

TechGreen is launching a line of miniature solar chargers for laptops, cellphones, and other electronic devices. The chargers are compact and affordable, and the green energy technology is a value-added benefit for both the company and consumers. Which of the following would qualify as an advertisement for TechGreen's new solar
Chargers?

A) an endorsement by a national environmental organization to tout the benefits of the new solar chargers
B) a press conference to discuss the various benefits, including environmental features
C) an online lottery where interested buyers have a chance to win a prize
D) the use of dedicated sales personnel to explain the qualities of the new solar chargers to retailers
E) a front-page notice of the release of TechGreen's solar chargers in all leading newspapers