Answer: A. An automobile company promotes small family cars and sports utility vehicles to a specific demographic.
Explanation:
Differentiated marketing is a form of marketing that occurs when the advertisement that is done by a particular company appeals to some particular target audiences or segments. Thus is usually done by the company to get ire customers and also enhance the brand awareness.
In this case, the activity that is an example of differentiated marketing will be option A. "An automobile company promotes small family cars and sports utility vehicles to a specific demographic".