Hilton Hotels' use of customer information software to identify the most profitable customers to direct services to is an example of using information systems to:a. strengthen customer intimacy. b. differentiate their service. c. focus on market niche. d. increase efficiency

The answer is "Option c".

Explanation:

A niche market is a section of a wider market, which may be identified by its own specific needs, desires, or identification, which makes it unique from the market as a whole, and other options were wrong that can be described as follows:

In option a, It is used to provide a connection between consumers and brands, that's why it is not correct. In option b, It is used in business and marketing, that's why it is not correct. In option d, It is a policy, that is not used in this process, that's why it is not correct.