Scenario 14-1 When the Social Networking/gaming Website Foursquare Launched in 2009, It

Scenario 14-1
When the social networking/gaming website Foursquare launched in 2009, it was only accessible to residents in 100 U.S.cities. One year later, an updated version of the service allows check-ins from locations all over the world and has over 500,000 users internationally. The site, which allows registered users to connect with friends and update their location, receives over one million check-ins per week. When users visit a particular store, their profile is automatically updated and they can share feelings about favorable experiences (or unfavorable ones) . The site now holds partnerships with over 800 establishments worldwide, and high-profile partnerships with the Bravo Network and The New York Times have greatly increased the site's popularity.
-(Scenario 14-1) As the number of Foursquare users increases, so do the efforts made by marketers to appeal to visitors to the site. Many of the site's users access it via their cell phone or PDA, so many companies are now creating advertisements to fit these media channels. These advertisements are examples of

A) intrusive marketing.
B) mobile marketing.
C) e-commerce.
D) splash marketing.