Final answer:
A data brokerage firm is an example of a company whose business model is based on access to large databases through the web.
Step-by-step explanation:
An example of a company whose business model is based on access to large databases through the web is a Data Brokerage Firm. Data brokerage firms collect, organize, and sell data to other businesses. They provide access to large databases where companies can find valuable information to inform their decision-making processes.
For instance, companies like Acxiom and Oracle Data Cloud are data brokerage firms that offer access to extensive databases of consumer information. These databases include demographic data, purchase history, online behavior, and other relevant data that companies can use for targeted marketing, customer segmentation, and other purposes.
Therefore, the correct answer is option c. Data Brokerage Firm.