What is one of the main reasons businesses use intranets?

Businesses commonly utilize intranets to provide exclusive information to employees, which is the primary reason for their implementation. An intranet serves as a private network that facilitates internal communication and collaboration within an organization. It allows employees to access important resources, company news, documents, and applications that are not intended for the public. This centralization of information enhances productivity as it enables employees to find and share information efficiently, fostering a better-informed workforce.

The other options do not align with the primary purpose of intranets. Promoting a public brand image focuses on external communications, which is not the function of an intranet. Reducing internet costs is not a direct benefit of an intranet, as it primarily concerns internal network management rather than refining external internet expenses. Increasing customer interaction typically relates to external platforms and services aimed at engaging with clients or customers, contrasting with the internal focus of an intranet. Thus, providing exclusive information to employees clearly illustrates the core function of intranets in a business setting.