Final answer:
The message received when walking near a coffee shop for a free biscotti is an example of location-based advertising, which targets customers through their mobile devices based on geographic proximity.
Step-by-step explanation:
When you receive a message on your cell phone saying "Come inside and get a free biscotti with any purchase," as you walk near a coffee shop, this is an example of location-based advertising. It targets customers based on their geographic location through their mobile device. By sending offers to people who are nearby, businesses aim to increase foot traffic and sales, leveraging the ubiquity of smartphones to engage with potential customers in a relevant and customized manner.
The correct answer is B. location-based advertising. Location-based advertising uses location tracking technology to deliver targeted ads to mobile devices based on the user's proximity to a specific location. In this scenario, the coffee shop is using location-based advertising to send a promotional message to people walking near their shop, offering a free biscotti with any purchase.