Which example illustrates a business using information systems for customer and supplier intimacy?

The example of the Mandarin Oriental hotel's customer-preference tracking system clearly illustrates a business using information systems to enhance customer and supplier intimacy. This system allows the hotel to gather and analyze customer preferences and behaviors, enabling them to offer personalized services and experiences. By meticulously tracking details such as previous stays, guest preferences, and special requests, the hotel can tailor its offerings to individual customers, thereby fostering a closer relationship with them. This not only enhances customer satisfaction but also builds loyalty, as guests feel valued and recognized for their unique preferences.

In the context of the other options, while systems like Wal-Mart's RetailLink might enhance supply chain efficiencies, focus more on inventory management, and the Verizon digital dashboard could improve operational oversight, they do not directly address the intricacies of personalizing customer interaction in the same way. Similarly, the Apple iPod, while a significant product in the tech landscape, pertains more to product development and consumer electronics rather than an information system that specifically aims to improve customer and supplier intimacy.