An example of a vertical system is which of the following?

A vertical system is designed to cater to the specific needs of a particular industry or market segment. In this context, a database for an auto dealership exemplifies a vertical system because it is tailored specifically to the automotive industry, addressing the unique requirements such as inventory management, customer relationship management, sales tracking, and service records.

The database is built to support the specific functionalities and processes that are prevalent in auto dealerships, making it a specialized tool. This contrasts with the other options, which are more generalized. For instance, an e-commerce website serves a broad range of industries and products, a social media platform is designed for content sharing and interaction across diverse fields, and general accounting software is applicable to various businesses without a specific industry focus. Thus, the database for an auto dealership stands out as it meets the specialized demands of a particular market, defining it as a vertical system.