Red Bull Sponsored Red Bull Stratos, a Space-Diving Project in Which

Red Bull sponsored Red Bull Stratos, a space-diving project in which skydiver Felix Baumgartner sky dived from the Earth's stratosphere. The move fit well with Red Bull's affiliation with extreme sports. This would best be an example of

A) stunt marketing.
B) television advertising.
C) electronic word-of-mouth marketing.
D) product placement.
E) buzz marketing.